Anatomy Practice Test 18
Anatomy NCLEX Practice Test
Anatomy is a key topic within the NCLEX test plan, located under Nursing Science → Clinical Foundations → Anatomy. This section examines human structure from a nursing perspective, supporting accurate assessment and procedural safety. Each test contains 50 questions designed to mirror the difficulty and variety of the real exam.
This is the 18th part of the Anatomy series. To explore all practice tests under this topic, use the “Back to Main Topic” button at the end of the page.
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In the Anatomy Study Cards section, shared by real NCLEX candidates, you’ll find concise summaries and high-yield insights related to the most tested concepts. It’s a perfect space to reinforce challenging topics and sharpen your recall through quick, focused repetitions. Short, powerful, and repeatable!
Anatomy Practice Test 18
The smallest bone in the human body is the femur.
- True
- False
Explanation: Answer reason: The femur is the largest and longest bone in the human body, not the smallest. The smallest bone is the stapes in the middle ear. Therefore, the statement is incorrect. Category reason: This item tests basic human anatomy knowledge regarding skeletal structures. The primary concept is identification of bone size and location.
What large artery is located near the largest leg bone in the body?
- Brachial
- Femoral
- Redial
- Carotid
Explanation: Answer reason: The largest leg bone is the femur, and the major artery that runs through the thigh alongside it is the femoral artery. The brachial and radial arteries are in the upper limb, and the carotid artery is in the neck. Therefore, the femoral artery is the large artery located near the femur. Category reason: This is a body-structure/location question about the relationship between a major lower-extremity artery and the femur, which is primarily studied in Anatomy.
Which bone is found in the upper limb?
- Sphenoid
- Coccyx
- Sternum
- Scaphoid
Explanation: Answer reason: The scaphoid is a carpal bone located in the wrist, which is part of the upper limb. In contrast, the sphenoid is a skull bone, the coccyx is at the inferior end of the vertebral column, and the sternum is a thoracic cage bone. Therefore, the only option that belongs to the upper limb is the scaphoid. Category reason: This is a body-structure identification question testing location of specific bones, which is core Anatomy content rather than nursing interventions or clinical judgment.
Milk teeth are also called?
- Permanent teeth
- Wisdom teeth
- Deciduous teeth
- Molar teeth
Explanation: Answer reason: Milk teeth are the first set of teeth that erupt in infancy and early childhood and are later shed to be replaced by permanent teeth. These primary teeth are termed deciduous teeth because they are temporary and "fall out" during normal development. Wisdom teeth refer specifically to third molars, and molar teeth are a tooth type rather than the overall temporary set. Permanent teeth are the second set and therefore not synonymous with milk teeth. Category reason: This is a basic identification of a body structure/terminology related to dentition (types of teeth), which is an Anatomy topic rather than a nursing care or clinical decision-making scenario.
The smallest bone in the human body is?
- Stapes
- Incus
- Malleus
- Phalanx
Explanation: Answer reason: The stapes is the smallest bone in the human body and is one of the three auditory ossicles in the middle ear. It transmits vibrations from the incus to the oval window of the inner ear. While the malleus and incus are also small, the stapes is the smallest. A phalanx is a finger/toe bone and is much larger than the ossicles. Category reason: This item tests identification of a specific human bone (the smallest ossicle in the middle ear), which is a core concept in human anatomy rather than nursing care decision-making.
How many bones are in each human toe (not including the big toe)...?
- 2
- 3
- 4
- 5
Explanation: Answer reason: Each of the lesser toes (2nd–5th toes) has three phalanges: proximal, middle, and distal. The big toe is the exception and has only two phalanges (proximal and distal). Therefore, when excluding the big toe, each toe contains 3 bones. The other numeric options do not match standard phalangeal anatomy. Category reason: This question tests factual knowledge of the skeletal structure of the toes (number of phalanges), which is an Anatomy topic rather than a nursing care/intervention decision.
Olfactory nerve passes through which of the following structures?
- Jugular foramen
- Foramen spinosum
- Cribriform plate
- Foramen rotundum
- Foramen ovale
Explanation: Answer reason: Cranial nerve I (olfactory nerve) consists of multiple olfactory fila that traverse the foramina in the cribriform plate of the ethmoid bone to reach the olfactory bulb. The jugular foramen transmits CN IX, X, and XI; foramen rotundum transmits CN V2; and foramen ovale transmits CN V3. The foramen spinosum primarily transmits the middle meningeal artery and the meningeal branch of V3, not CN I. Category reason: This question tests knowledge of skull base foramina and the bony passageway of a cranial nerve, which is core anatomy.
What is the outermost layer of the kidney called?
- Pelvis
- Capsule
- Medulla
- Cortex
Explanation: Answer reason: The kidney is covered externally by a tough fibrous renal capsule, which is the true outermost layer. The cortex lies just deep to the capsule and contains glomeruli and proximal/distal tubules. The medulla is deeper and contains pyramids/loops of Henle and collecting ducts, while the renal pelvis is an internal urine-collecting space. Therefore, the capsule is the correct choice. Category reason: This question tests identification of kidney layers (capsule, cortex, medulla, pelvis), which is a structural anatomy concept rather than a nursing intervention or clinical judgment task.
Where is the parietal lobe located?
- Behind the forehead
- Behind the frontal lobe
- In the rear of the brain
- Beside the cerebellum.
Explanation: Answer reason: The parietal lobe lies posterior to the frontal lobe, separated by the central sulcus. Option A describes the frontal lobe region, option C corresponds more to the occipital lobe (rear of the brain), and option D is not an accurate description of parietal lobe position (the cerebellum is inferior/posterior). Therefore, the best answer is that it is behind the frontal lobe. Category reason: This is a question about the anatomical location of a cerebral lobe within the brain, which is a foundational Anatomy topic rather than a nursing intervention or clinical judgment item.
What is the smallest bone in the human body?
- Fibula
- Malleus
- Stapes
- Incus
Explanation: Answer reason: The stapes is the smallest bone in the human body and is one of the three auditory ossicles in the middle ear (malleus, incus, stapes). It transmits sound vibrations from the incus to the oval window of the inner ear. The malleus and incus are also small but larger than the stapes, while the fibula is a long bone of the leg and is much larger. Category reason: This is a factual question about identifying a specific bone and its relative size, which is core content in human anatomical study.
Which bone is known as the heel bone?
- Navicular
- Calcaneus
- Cuboid
- Talus
Explanation: Answer reason: The calcaneus is the largest tarsal bone and forms the posterior prominence of the foot, commonly called the heel. It transmits body weight from the talus to the ground and provides attachment for the Achilles (calcaneal) tendon. The talus sits superior to the calcaneus and forms the ankle joint, while the navicular and cuboid are more anterior midfoot bones. Category reason: This is a foundational identification of a specific foot bone, which is a core topic in human gross anatomy rather than nursing intervention or clinical decision-making.
Total number of bones in face ..
- 19 bone
- 10 bone
- 12 bone
- 14 bone
Explanation: Answer reason: The facial skeleton (viscerocranium) consists of 14 bones: 2 maxillae, 2 zygomatic, 2 nasal, 2 lacrimal, 2 palatine, 2 inferior nasal conchae, 1 vomer, and 1 mandible. These are distinct from the 8 cranial bones that form the neurocranium. Therefore, the correct total number of bones in the face is 14. Category reason: This question tests recall of the number and types of facial bones, which is core human skeletal anatomy rather than a nursing care decision.
The smallest bone in the human body is the?
- Incus
- Scapula
- Stapes
- Femur
Explanation: Answer reason: The stapes is the smallest bone in the human body and is one of the three ossicles of the middle ear (malleus, incus, stapes). It transmits vibrations from the incus to the oval window of the cochlea to support hearing. The incus is also an ossicle but is larger than the stapes, while the scapula and femur are large bones of the shoulder and thigh, respectively. Category reason: This is a factual question about identification of a specific bone and its anatomical classification, which falls under Anatomy rather than nursing care decision-making.
How many bones are in the human hand (including wrist)?
- 27
- 24
- 30
- 29
Explanation: Answer reason: The human hand including the wrist contains 8 carpal bones, 5 metacarpal bones, and 14 phalanges. Adding these gives 8 + 5 + 14 = 27 total bones. This is the standard anatomical count for one hand including the wrist (carpus). Category reason: This question tests recall of the number of bones in the hand and wrist, which is a foundational structural fact in human Anatomy.
Total number of bones in new born baby...
- 300
- 208
- 220
- 312
Explanation: Answer reason: A newborn has approximately 300 bones because many skeletal elements are still separate and partly cartilaginous at birth. As the child grows, multiple bones fuse (e.g., skull bones, sacral vertebrae, and parts of the pelvis), reducing the total. This fusion leads to the typical adult count of about 206 bones. Therefore, 300 is the best answer among the options. Category reason: The question tests a factual count of skeletal structures in a newborn, which is a core topic in gross anatomy rather than nursing interventions or clinical judgment.
Which part of the body is sometimes called the "Tarsus"?
- Back bone
- Collar bone
- Heel bone
- Ribs
Explanation: Answer reason: The tarsus refers to the cluster of tarsal bones that form the ankle and proximal foot. Among the given options, the closest and best match is the heel bone (calcaneus), which is a major tarsal bone. The other options (back bone/vertebrae, collar bone/clavicle, ribs) are not part of the tarsal region. Category reason: This question tests identification of an anatomical term for a region/bone group of the foot, which is a foundational body-structure topic within Anatomy rather than a nursing care decision.
The sublingual gland secretes mainly motly:
- Mucous
- Mixed
- Chronc
- Mixked
Explanation: Answer reason: Among the major salivary glands, the sublingual gland is predominantly mucous-secreting, producing thick, viscous saliva. In contrast, the parotid gland is mainly serous and the submandibular gland is mixed but mostly serous. Therefore, the best answer is mucous. Category reason: This question tests basic structural/functional classification of a salivary gland (type of secretion), which is core anatomy content rather than a nursing care decision.
Which part of the human body is called the "voice box"?
- Pharynx
- Larynx
- Trachea
- Epiglottis
Explanation: Answer reason: The larynx is termed the "voice box" because it contains the vocal cords (vocal folds) that vibrate to produce sound during phonation. It sits between the pharynx and the trachea and also helps protect the lower airway during swallowing. The pharynx is a shared passage for air and food, the trachea is the windpipe for airflow, and the epiglottis is a cartilage flap that covers the laryngeal inlet during swallowing. Category reason: This question tests identification of an anatomical structure and its common name/function (voice production), which is core human anatomy rather than a nursing intervention or patient-care decision.
Hyoid bone lies..
- Above the mandible
- Above the mandible and below the larynx
- B/W ethmoid & sphenoid bones
- Below the mandible and above the larynx
Explanation: Answer reason: The hyoid bone is a U-shaped bone in the anterior neck that sits inferior to the mandible and superior to the thyroid cartilage of the larynx (around the C3 level). It is unique in that it does not articulate directly with other bones and serves as an attachment for tongue and suprahyoid/infrahyoid muscles. Therefore, the correct location is below the mandible and above the larynx. The other options either place it above the mandible or within the cranial base, which is anatomically incorrect. Category reason: This is a foundational question about the anatomical position of the hyoid bone in relation to nearby structures (mandible and larynx), which falls under Anatomy rather than nursing care decision-making.
Umbilical vein becomes...
- Ligamentum teres
- Ligamentum venosum
- Medial Umbilical ligament
- Ligamentum arteriosum
Explanation: Answer reason: After birth, the umbilical vein closes and becomes the ligamentum teres hepatis (round ligament of the liver) within the falciform ligament. In contrast, the ductus venosus becomes the ligamentum venosum, the umbilical arteries become the medial umbilical ligaments, and the ductus arteriosus becomes the ligamentum arteriosum. Therefore the correct postnatal remnant of the umbilical vein is ligamentum teres. Category reason: This is a factual question about fetal vascular remnants and their postnatal anatomical structures, which is a core topic in Anatomy rather than nursing care decisions.
Name the bone that is not connect with any other bone in body...?
- Sternum
- Clavicle
- Hyoid
- Scapula
Explanation: Answer reason: The hyoid bone is unique because it does not articulate (form a joint) with any other bone; it is suspended in the neck by muscles and ligaments. In contrast, the sternum connects to ribs and clavicles, the clavicle articulates with the sternum and scapula, and the scapula articulates with the clavicle and humerus. Therefore, the only bone not connected to any other bone by a joint is the hyoid. Category reason: This question tests identification of a unique skeletal bone and its articulations, which is core human anatomy knowledge rather than a nursing care decision.
The parotid gland secretes mainly:
- Mucous
- Serous
- Mixed
- Hormones
Explanation: Answer reason: The parotid gland is a major salivary gland composed predominantly of serous acini, producing a watery, enzyme-rich saliva (notably amylase). In contrast, the sublingual gland is mainly mucous and the submandibular gland is mixed. Therefore, the parotid gland secretes mainly serous saliva. Category reason: This is a foundational question about the type of secretion produced by a specific salivary gland, which is primarily an anatomy concept of gland structure and function.
How many limbs are there in the right hand?
- 1
- Only fingers
- 5
- 2
Explanation: Answer reason: The right hand has five digits (thumb plus four fingers), which the question is effectively asking for despite using the term "limbs." Humans have four limbs total (two upper, two lower), so options suggesting 1 or 2 do not match standard anatomy. "Only fingers" is not a numeric answer and is incomplete. Therefore, the best answer is 5. Category reason: This is a basic human body-structure question about the number of digits in the hand, which is covered under Anatomy rather than nursing clinical decision-making.
Which is the largest part of the human brain?
- Cerebellum
- Cerebrum
- Brainstem
- Medulla oblongata
Explanation: Answer reason: The cerebrum is the largest part of the human brain, accounting for the majority of brain mass and volume. It consists of the two cerebral hemispheres and is responsible for higher functions such as cognition, sensory processing, and voluntary motor control. The cerebellum is smaller and primarily coordinates movement and balance, while the brainstem and medulla oblongata are much smaller structures controlling vital autonomic functions. Category reason: This question tests identification of major brain structures by size, which is a foundational gross anatomy concept rather than a nursing intervention or clinical decision-making scenario.
What is the structure found above the kidneys?
- Duodenum
- Fat
- Adrenal glands
- Bladder.
Explanation: Answer reason: Adrenal glands The adrenal (suprarenal) glands sit on the superior poles of each kidney. They are distinct endocrine organs anatomically positioned “above” the kidneys. The duodenum and bladder are located elsewhere in the abdomen/pelvis, and “fat” is not the named specific structure referred to in standard anatomy for this relationship. Category reason: This question tests the anatomical relationship of organs (which structure lies superior to the kidneys), making it primarily an Anatomy topic rather than a nursing care/intervention decision.
Which of the following are longest cells of human body?
- Nerve cells
- Pancreatic cells
- Epithelial cells
- Epidermal cells
Explanation: Answer reason: Nerve cells Neurons are the longest cells in the human body because their axons can extend very long distances to transmit impulses (e.g., from the spinal cord to the foot via the sciatic nerve). This extreme length is a key structural adaptation for rapid communication across the body. Pancreatic, epithelial, and epidermal cells do not have processes comparable to long axons and therefore are not the longest cells. Category reason: This is a foundational question about human cell structure and which cell type is longest, which is primarily covered under Anatomy rather than patient-care decision-making.
Average weight of Human brain is .........?
- 1.3 to 1.4 kg
- 2.2 to 2.4 kg
- 1.1 to 1.8 kg
- None of the above
Explanation: Answer reason: 1.3 to 1.4 kg The average adult human brain weight is approximately 1.3–1.4 kg (about 1300–1400 g), with normal variation by sex, body size, and age. The 2.2–2.4 kg range is far above typical adult values. While 1.1–1.8 kg includes many possible weights, the question asks for the average, making 1.3–1.4 kg the best match. Category reason: This item tests a normal structural measurement of the human brain, which is foundational human anatomy rather than a nursing care decision.
Which is the largest internal organ of human body...?
- Brain
- Heard
- Liver
- Kidney
Explanation: Answer reason: Liver The liver is the largest internal organ in the human body by mass. It performs key functions including metabolism of nutrients, detoxification, synthesis of plasma proteins (e.g., albumin and clotting factors), and bile production. The brain and heart are vital organs but are smaller than the liver, and the kidneys are also smaller individually and collectively. Category reason: This question tests basic identification of a major human organ and comparative organ size, which is a foundational Anatomy concept rather than a nursing intervention or clinical judgment task.
Which is the largest part of the human brain?
- Cerebrum
- Cerebellum
- Medulla Oblongata
- Pons
Explanation: Answer reason: Cerebrum The cerebrum is the largest part of the human brain, comprising the two cerebral hemispheres and accounting for the majority of brain mass. It is responsible for higher functions such as conscious thought, voluntary movement, sensation, language, and memory. The cerebellum is smaller and primarily coordinates balance and fine motor control, while the pons and medulla oblongata are brainstem structures with vital autonomic functions. Category reason: This item tests identification of the largest anatomical subdivision of the brain, which is a foundational human anatomy concept rather than a nursing intervention or clinical decision-making scenario.
The two pleural cavities are situated on either side of the ...........?
- Mediastinum
- Lungs
- Heart
- Esophagus
- Diaphragm
Explanation: Answer reason: Mediastinum The right and left pleural cavities each surround a lung and lie lateral to the mediastinum, which is the central compartment of the thoracic cavity. The mediastinum contains the heart (within the pericardial cavity), great vessels, trachea, and esophagus, separating the two pleural sacs. Therefore, the pleural cavities are situated on either side of the mediastinum. Category reason: This is a structural location question about thoracic cavity compartments (pleural cavities and mediastinum), which is core human Anatomy rather than nursing care decisions.
Q. The largest gland in human body is?
- Pancrease
- Liver
- Salivery gland
- None
Explanation: Answer reason: Liver The liver is the largest gland in the human body, functioning as a major exocrine gland by producing bile and secreting it into the biliary ducts. It also has extensive metabolic and synthetic roles (e.g., protein synthesis, detoxification, glycogen storage). The pancreas and salivary glands are important exocrine glands but are smaller than the liver. Therefore, “Liver” is the single best answer. Category reason: This question tests identification of a major human gland and basic structural/organ knowledge, which is primarily anatomy rather than nursing care decision-making.
Ligament is connection between .?
- Muscle to bone
- Bone to bone
- Muscle to muscle
Explanation: Answer reason: Bone to bone Ligaments are dense fibrous connective tissues that connect one bone to another bone across a joint, providing stability and limiting excessive movement. In contrast, tendons connect muscle to bone, so the “muscle to bone” option describes a tendon rather than a ligament. “Muscle to muscle” is not the typical primary function/definition of ligaments in musculoskeletal anatomy. Category reason: This question tests the structural relationship of connective tissues (ligament vs tendon), which is a foundational concept in musculoskeletal anatomy rather than nursing care decision-making.
Which is the weakest bone in human body?
- Calvicle
- Massacle
- Humerus
- Stapes
Explanation: Answer reason: Stapes The stapes is the smallest and lightest bone in the human body and is often referred to as the most delicate/weakest bone. It is one of the three auditory ossicles in the middle ear and is not designed for weight-bearing like long bones (e.g., humerus, clavicle). Therefore, among the given options, stapes best fits the description of the weakest bone. Category reason: This item tests identification of a specific bone (the stapes) and compares skeletal structures, which is core human Anatomy rather than nursing intervention or clinical judgment.
How many vertebrae are in the human spine?
- 26
- 30
- 33
- 28
Explanation: Answer reason: 33 The human vertebral column is classically described as having 33 vertebrae: 7 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 4 coccygeal. In adults, the sacral and coccygeal vertebrae fuse to form the sacrum and coccyx, which is why some sources cite 26 bones in the adult spine. However, the count of vertebrae themselves is 33, making this the best answer. Category reason: This question tests factual knowledge of the number and distribution of vertebrae in the spine, which is a core topic in Anatomy rather than a nursing care decision.
Q. The pericardium is?
- Heart muscle
- Coronary artery
- Heart valve
- Heart's outer sac
Explanation: Answer reason: Heart's outer sac The pericardium is a fibroserous sac that encloses the heart and the roots of the great vessels. It provides mechanical protection, limits acute cardiac dilation, and reduces friction during cardiac motion via pericardial fluid. The other options describe different cardiac structures: myocardium (heart muscle), coronary arteries (blood supply), and valves (ensure one-way flow). Category reason: This is a structural identification question about a cardiac covering, which is primarily tested in Anatomy rather than nursing care decision-making.
How many vertebrae in lumbar spine?
- 7 vertebra
- 12 vertebra
- 5 vertebra
- 14 vertebra
Explanation: Answer reason: 5 vertebra The human lumbar spine normally consists of five vertebrae, labeled L1 through L5. This region sits between the thoracic spine (12 vertebrae) and the sacrum (fused sacral vertebrae). Therefore, the correct count for lumbar vertebrae is five. Category reason: This question tests factual knowledge of the number of vertebrae in a spinal region, which is a core Anatomy topic rather than a nursing care decision.
Which bones form the wrist joint?
- Carpals
- Metacarpals
- Phalanges
- Radius and ulna.
Explanation: Answer reason: Radius and ulna. The wrist (radiocarpal) joint is formed proximally by the distal radius with contribution from the ulna via the articular disc (TFCC), articulating with the proximal carpal row. Metacarpals and phalanges form joints in the hand and fingers, not the wrist joint proper. Carpals are part of the wrist joint surfaces but the forearm bones forming the proximal component are the radius and ulna (through the TFCC). Category reason: This question tests identification of bones that constitute a joint, which is a foundational structural topic in Anatomy rather than a nursing care decision.
What sits below the cerebrum and in front of the cerebellum?
- Cerebellum
- Brainstem
- Thalamus
- Cerebrum.
Explanation: Answer reason: Brainstem The brainstem lies inferior to the cerebrum and anterior to the cerebellum, connecting the brain to the spinal cord. It includes the midbrain, pons, and medulla oblongata, and forms the anterior portion of the hindbrain/brainstem region relative to the cerebellum. The other options are incorrect because the cerebellum is posterior, the thalamus is deep within the cerebrum, and the cerebrum is superior. Category reason: This is a question about the relative anatomical positioning of major brain structures, which is tested under Anatomy rather than nursing interventions or clinical judgment.
Opening of the nose is called?
- Nostrils
- Pharynx
- Larynx
- Epiglottis
Explanation: Answer reason: Nostrils The external openings of the nose are the nostrils (nares), which lead into the nasal cavity. The pharynx is the throat region posterior to the nasal and oral cavities, not an external nasal opening. The larynx (voice box) and epiglottis are structures of the upper airway involved in phonation and airway protection, respectively, not nasal openings. Category reason: This is a basic identification of an anatomical structure (the external opening of the nose), which falls under Anatomy rather than nursing care decision-making.
Fluids in joints is called ?
- Synovial
- Cerebral
- Plasma
- Lymph
Explanation: Answer reason: Synovial Synovial fluid is the lubricating fluid found within synovial joint cavities, reducing friction between articular cartilage surfaces during movement. Cerebral refers to the brain, plasma is the liquid component of blood, and lymph is lymphatic fluid in lymph vessels. Therefore the fluid in joints is synovial fluid. Category reason: This question tests basic structural knowledge of joints and the name of the fluid within synovial joints, which is a core Anatomy concept.
The largest parts of brain
- Cerebellum
- Cerebrum
- Thalamus
- Medulla
Explanation: Answer reason: cerebrum The cerebrum is the largest part of the brain, comprising the two cerebral hemispheres and accounting for the majority of brain mass. It contains the cerebral cortex and subcortical structures responsible for higher functions such as cognition, sensation, and voluntary motor control. The cerebellum is smaller and mainly coordinates movement and balance, while the thalamus and medulla are much smaller deep/brainstem structures. Category reason: This question tests identification of the largest anatomical part of the brain, which is a foundational structural concept in Anatomy rather than a nursing care decision.
Which is the longest muscle in the human body?
- Rectus femoris
- Gluteus
- Sartorius
- Biceps brachii
Explanation: Answer reason: Sartorius The sartorius is the longest muscle in the human body, running obliquely from the anterior superior iliac spine to the medial surface of the proximal tibia (pes anserinus). Its long strap-like course across both the hip and knee makes it longer than other listed muscles. Rectus femoris and biceps brachii are long but not the longest, and “gluteus” refers to a group of muscles rather than a single longest muscle. Category reason: This is a factual question about naming a specific skeletal muscle and its relative size, which is primarily studied in Anatomy.
Brachial plexus supply to ___?
- Lower limb
- Upper limb
- Heart
- Abdomen
Explanation: Answer reason: upper limb The brachial plexus (roots C5–T1) forms the major peripheral nerves of the upper extremity, including the musculocutaneous, median, ulnar, radial, and axillary nerves. It provides motor and sensory innervation to the shoulder, arm, forearm, and hand. The lower limb is primarily supplied by the lumbosacral plexus, and the heart/abdomen are supplied mainly by autonomic and thoracoabdominal nerves rather than the brachial plexus. Category reason: This is a foundational question about which body region is innervated by a specific nerve plexus, which is a core Anatomy topic rather than a nursing care or safety decision.
Right kidney is lower than the left kidney because...?
- In right side liver is occupying considerable space
- Right kidney is larger in size
- Pulling force extracted by renal ligament on right side
- Left kidney is smaller in size
Explanation: Answer reason: In right side liver is occupying considerable space The liver is a large organ located in the right upper quadrant and occupies substantial space superior to the right kidney. This causes the right kidney to be positioned slightly lower than the left kidney. The other options (kidney size differences or ligament pull) are not the standard anatomical reason for the asymmetry in kidney height. Category reason: This question tests normal anatomical relationships of abdominal organs (kidney position relative to the liver), which is a core Anatomy concept rather than a nursing intervention or prioritization task.
Which tendon passes through the carpal tunnel within the wrist?
- Flexor digitorum profundus
- Extensor digitorum
- Palmaris longus
- Flexor policis longus
Explanation: Answer reason: Flexor digitorum profundus The carpal tunnel contains the median nerve and nine flexor tendons: four flexor digitorum superficialis, four flexor digitorum profundus, and one flexor pollicis longus. Extensor digitorum runs on the dorsal side of the wrist and does not pass through the carpal tunnel. Palmaris longus passes superficial to the flexor retinaculum (outside the tunnel), making flexor digitorum profundus the best single answer among the options. Category reason: This question tests knowledge of which tendons anatomically traverse the carpal tunnel, which is a structural anatomy topic rather than a nursing care/intervention decision.
What is the medical term for kneecap?
- Scapula
- Patella
- Femur
- Tibia
Explanation: Answer reason: Patella The kneecap is anatomically termed the patella, a sesamoid bone embedded in the quadriceps tendon. It protects the anterior knee joint and increases the leverage of the quadriceps during knee extension. The other options are different bones: scapula (shoulder blade), femur (thigh bone), and tibia (shin bone). Category reason: This question tests identification of a specific bone name (kneecap) and its correct anatomical term, which is foundational Anatomy rather than a nursing intervention or patient-care judgment.
What is the approximate weight of the stomach?
- 1.5 kg
- 500 g
- 1.5 kg
- 2.0 kg
Explanation: Answer reason: 500 g The adult stomach (empty) typically weighs a few hundred grams; commonly cited approximate values cluster around ~150–250 g, and some exam references accept ~500 g as an approximate figure. The other options (1.5 kg and 2.0 kg) are far too heavy for the stomach alone and are closer to organ weights like the liver (around 1.5 kg). Therefore, among the given choices, 500 g is the best approximation. Category reason: This question tests a foundational anatomical fact about an organ’s normal physical characteristic (organ weight), which falls under Anatomy rather than nursing care decision-making.
Which part of the body helps in hearing?
- Nose
- Ear
- Tongue
Explanation: Answer reason: Ear The ear is the sensory organ responsible for hearing, converting sound waves into neural signals via the cochlea and auditory nerve. The nose is primarily involved in smell and airflow conditioning, not auditory perception. The tongue is involved in taste, speech, and swallowing, not hearing. Category reason: This question tests identification of a body part and its function (hearing), which is a basic structural-function concept under Anatomy.
What is the weight of the spleen?
- 300 g
- 100-150 g
- 400 g
- 150 g
Explanation: Answer reason: 100-150 g The normal adult spleen typically weighs around 150 g, commonly cited as a range of about 100–150 g. Values like 300 g or 400 g are more consistent with splenomegaly rather than a normal spleen. Therefore, the best answer is the normal-weight range provided. Category reason: This question tests a normal anatomical parameter (typical organ weight) of the spleen rather than nursing interventions or clinical decision-making, so it fits Anatomy within NursingScience.
Which structure connects the two cerebral hemispheres?
- Pons
- Midbrain
- Corpus callosum
- Thalamus
Explanation: Answer reason: Corpus callosum The corpus callosum is the largest commissural white-matter tract, containing nerve fibers that connect the left and right cerebral hemispheres to allow interhemispheric communication. The pons and midbrain are brainstem structures involved in relay and autonomic functions rather than directly joining the hemispheres. The thalamus is a major sensory relay nucleus but does not serve as the primary bridge between hemispheres. Category reason: This question tests identification of a brain structure and its anatomical function (interconnecting the cerebral hemispheres), which is a foundational Anatomy concept rather than a nursing intervention or clinical judgment task.
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