Question 1

What is the Name Of smallest bone in humabody?

Accepted Answer

Answer reason: It transmits sound vibrations from the incus to the oval window of the cochlea, and its tiny size reflects this specialized role in hearing mechanics. In contrast, the tibia and fibula are long bones of the lower leg and are among the larger skeletal elements. The patella is a sesamoid bone at the knee and is also much larger than any middle-ear ossicle.

Question 2

Where is the femur bone located?

Accepted Answer

Answer reason: The femur is the thigh bone and is the longest, strongest bone of the human body. It forms the proximal part of the lower limb, articulating with the pelvis at the hip joint and with the tibia (and patella) at the knee. Therefore, its location is in the leg (specifically the thigh region). The arm contains the humerus, radius, and ulna, which makes “Arm” a common but incorrect distractor.

Question 3

The gland that is located below hypophyseal fossa of sphenoid bone is?

Accepted Answer

Answer reason: The pituitary sits within this bony seat and is connected to the hypothalamus by the infundibulum, making its location clinically important in endocrine regulation. The thyroid and thymus are in the neck/anterior mediastinum, and the adrenal glands are on the superior poles of the kidneys, so they do not correspond to the sphenoid’s hypophyseal fossa. Therefore the only anatomically correct choice is the gland that resides in the sella turcica.

Question 4

Which of these is a common passage for food and air?

Accepted Answer

Answer reason: The pharynx functions as this common passageway, directing air toward the larynx/trachea and food toward the esophagus. The larynx and trachea are dedicated to air conduction and airway protection, not food passage. The esophagus is dedicated to food transport only, so it is not shared with air.

Question 5

Which upper extremity body movement is being demonstrated when a patient jumps rope?

Accepted Answer

Answer reason: Jumping rope typically uses the shoulder in a circular “windmill” motion to turn the rope, which combines flexion, abduction, extension, and adduction into one continuous circular movement. That combined circular movement of the distal limb around the joint is the defining feature of circumduction. Pure flexion or extension alone would move the arm in a single plane rather than the multi-planar circle required to rotate the rope. Inward (internal) rotation may occur as a component at times, but it does not best describe the primary overall movement pattern.

Question 6

Which nerve exits through the cribriform plate?

Accepted Answer

Answer reason: This anatomy explains why fractures of the cribriform plate can cause anosmia and create a pathway for CSF rhinorrhea. By contrast, the optic nerve passes through the optic canal, not the cribriform plate. The trochlear and trigeminal nerves traverse other cranial foramina/fissures rather than the ethmoid’s cribriform foramina.

Question 7

While palpating a female client’s right upper quadrant (RUQ), the nurse would expect to find which of the following structures?

Accepted Answer

Answer reason: The liver’s right lobe extends under the right costal margin, making it a key expected structure on RUQ palpation. By contrast, the spleen is located in the LUQ, while the appendix and sigmoid colon are typically found in the RLQ and LLQ respectively. Therefore the only option anatomically consistent with the RUQ is the correct choice.

Question 8

The optic nerve passes through which foramen?

Accepted Answer

Answer reason: Cranial nerve II travels from the orbit to the cranial cavity via the optic canal (optic foramen) in the sphenoid bone, along with the ophthalmic artery. The jugular foramen transmits CN IX, X, and XI, not the visual pathway. Foramen ovale carries the mandibular division of CN V, and the hypoglossal canal carries CN XII, making them incorrect.

Question 9

How many bones are present in a newborn baby?

Accepted Answer

Answer reason: As growth occurs, ossification and fusion reduce the number of distinct bones (e.g., skull sutures/fontanelles, sacral and coccygeal segments, and parts of the pelvis). By adulthood, these fusions result in the commonly cited 206 bones, making 206 a typical distractor for this question. The approximate newborn count is around 300, which best matches the exam-standard figure provided in the options.

Question 10

Apxedix is located in -?

Accepted Answer

Answer reason: Clinically, appendicitis pain often localizes to the RLQ (e.g., near McBurney’s point) after initial periumbilical visceral pain, reflecting this location. The LUQ and RUQ correspond to regions containing stomach/spleen and liver/gallbladder respectively, which do not match the cecal origin of the appendix. While anatomic variants (e.g., retrocecal or pelvic appendix) can alter pain patterns, the quadrant location remains best described as RLQ for standard exam purposes.

Question 11

The smallest bone in the human body is —?

Accepted Answer

Answer reason: The stapes (stirrup) transmits vibrations from the incus to the oval window and is the smallest bone in the body. Malleus is also an ossicle but is larger than the stapes. Femur and ulna are long bones and are far larger, making them clear distractors.

Question 12

The voice box is known as –?

Accepted Answer

Answer reason: This structure sits between the pharynx and the trachea and functions in voice production as well as airway protection during swallowing. The pharynx is a shared passageway for air and food but does not contain the vocal cords. The trachea and bronchi primarily conduct air to the lungs and are not responsible for generating sound.

Question 13

The hardest substance in the body is —?

Accepted Answer

Answer reason: Tooth enamel is the hardest substance in the human body because it is the most highly mineralized tissue, composed predominantly of hydroxyapatite crystals with very low organic content. This extreme mineral density gives enamel superior resistance to compressive forces and wear compared with other connective tissues. Bone is strong but has a higher organic matrix and active remodeling, making it less hard than enamel. Dentin is softer than enamel and more elastic to support it, while cartilage is much less mineralized and therefore far less hard.

Question 14

The Longest bone in the body –?

Accepted Answer

Answer reason: Its large length and robust shaft reflect its key role in weight-bearing and locomotion. The humerus is the longest bone of the upper limb but is shorter than the femur overall. The radius is a forearm bone and the stapes is a tiny middle-ear ossicle, making them clearly incorrect.

Question 15

Number of ribs in humans?

Accepted Answer

Answer reason: These are classified as 7 true ribs attaching directly to the sternum, 3 false ribs attaching indirectly via costal cartilage, and 2 floating ribs without anterior attachment. This standard anatomical count is foundational for describing the thoracic cage and interpreting chest imaging and physical exam landmarks. Counts like 10 or 14 pairs would not match the normal thoracic vertebral segmentation and would imply rare congenital variants rather than the expected human anatomy.

Question 16

The nurse is assessing the patient's range of motion in their upper extremities. The nurse instructs the patient to bring their arms down by their side after having them stretched out to the sides. This is what type of joint movement?

Accepted Answer

Answer reason: Bringing the arms from an abducted position (out to the sides) down to rest alongside the trunk moves the humerus toward midline at the shoulder. Abduction would be the opposite direction—raising the arms away from the body. Rotation involves turning around the long axis, and extension refers to increasing the angle at a joint, neither of which describes this motion.

Question 17

Largest part of the human brain is —?

Accepted Answer

Answer reason: The cerebrum (two cerebral hemispheres) makes up the largest volume and mass of the human brain and contains the cerebral cortex and underlying white matter. It is responsible for higher cognitive functions, sensory integration, and voluntary motor control, which aligns with it being the most extensive structure. In contrast, the cerebellum and brainstem parts (pons, medulla) are smaller structures mainly involved in coordination and vital autonomic functions.

Question 18

The largest organ of the human body is —?

Accepted Answer

Answer reason: The skin covers the entire external surface and therefore has the greatest surface area and substantial total weight compared with internal organs. While the liver is the largest internal organ, it does not exceed the skin when considering the whole-body organ system. Brain and heart are vital but much smaller in both surface area and mass than the integument.

Question 19

The windpipe is called –?

Accepted Answer

Answer reason: This structure is a cartilaginous tube with C-shaped rings that maintain airway patency and allow ventilation. The bronchi are the two major branches after this tube bifurcates, so they are not the initial “windpipe.” The esophagus is part of the digestive tract, and the larynx is the voice box above the airway conduit rather than the conduit itself.

Question 20

Which artery supplies oxygenated blood to liver, stomach and abdominal esophagus?

Accepted Answer

Answer reason: These branches supply the stomach and liver, and the left gastric artery also provides esophageal branches to the abdominal esophagus. In contrast, the mesenteric arteries predominantly supply midgut and hindgut structures rather than the foregut. The brachiocephalic and costacervical arteries supply thoracic/neck regions, not upper abdominal organs.

Question 21

Which of the following bone is known as "Side of the head Bone" ...?

Accepted Answer

Answer reason: Because they occupy the temple region on each side, they are commonly referred to as the “side of the head” bones. The parietal bones primarily form the superior-lateral “roof” of the cranium rather than the classic side/temple region. The frontal and occipital bones form the anterior forehead and posterior skull, respectively, not the sides.

Question 22

During a teaching session with a group of nursing students, Nurse Parker is discussing the anatomy of the heart. She asks the students to identify the term that refers to the bluntly rounded lower tip of the heart. Which term should the students select?

Accepted Answer

Answer reason: This matches the description of the bluntly rounded lower tip of the heart. The base is the broad superior aspect where the great vessels attach, not the lower tip. The aorta is a vessel leaving the heart, and the pericardium is the surrounding sac rather than a specific tip or surface landmark.

Question 23

How many pairs of ribs does the average person have?

Accepted Answer

Answer reason: The first 7 pairs are “true” ribs that attach directly to the sternum via costal cartilage, pairs 8–10 are “false” ribs that attach indirectly, and pairs 11–12 are “floating” ribs with no anterior attachment. This standard anatomic pattern supports protection of thoracic organs and mechanics of respiration. The other counts listed do not match normal human skeletal anatomy and would imply missing or extra rib pairs beyond usual variation.

Question 24

What is the name of the muscle that extends from the sphenoid bone to the mandible?

Accepted Answer

Answer reason: The pterygoid muscles (especially the lateral pterygoid) arise from the sphenoid bone and insert onto the mandible (e.g., the neck of the mandibular condyle) to produce jaw movements. This directly matches the stem’s specified bony attachments. By contrast, the masseter originates from the zygomatic arch rather than the sphenoid, so it does not fit the described origin.

Question 25

Where is the thyroid gland located?

Accepted Answer

Answer reason: The thyroid is an endocrine gland anatomically situated in the anterior neck, lying just inferior to the larynx and anterior to the trachea. Its two lobes sit on either side of the trachea and are connected by an isthmus, making the neck the correct body region. The abdomen and liver are not normal locations for endocrine thyroid tissue (aside from rare ectopic tissue), and the chest location would more appropriately describe the thymus or mediastinal structures. Clinically, this location explains why thyroid enlargement (goiter) presents as an anterior neck mass and can cause dysphagia or airway symptoms.

Question 26

Total number of bones in a phalanges?

Accepted Answer

Answer reason: Digits 2–5 each have three phalanges (proximal, middle, distal), while the thumb (or great toe) has two (proximal, distal), giving 3×4 + 2 = 14. This directly matches the standard count of phalangeal bones per hand or per foot. Options like 12 or 15 reflect miscounting the thumb/great toe or assuming all digits have three phalanges.

Question 27

The number of lumbar vertebrae is _______?

Accepted Answer

Answer reason: The lumbar region typically contains five distinct vertebrae (L1–L5) that bear substantial weight and allow flexion/extension. Seven corresponds to the cervical vertebrae, and twelve corresponds to the thoracic vertebrae, making them common distractors. Ten is not a standard vertebral region count in typical anatomy.

Question 28

Which structure separates the heart's chambers?

Accepted Answer

Answer reason: The interatrial and interventricular septa specifically separate the atria from each other and the ventricles from each other. Valves primarily regulate one-way blood flow between chambers and outflow tracts rather than serving as the main dividing wall. Arteries and veins are vessels that carry blood to and from the heart and do not divide internal chambers.

Question 29

Phalanges are located in?

Accepted Answer

Answer reason: The shoulder is composed of the scapula, clavicle, and proximal humerus, not phalanges. The neck consists primarily of cervical vertebrae and associated structures, and the hip involves the pelvis and proximal femur. Therefore, the only option that correctly matches the location of phalanges is the digits (fingers).

Question 30

Quadriceps are muscles of the?

Accepted Answer

Answer reason: Its primary action is extension of the knee (and the rectus femoris also assists with hip flexion), which aligns with its anatomical position over the femur and knee joint. This location and function distinguish it from muscles of the lower leg, which primarily act on the ankle and foot. Therefore, the best anatomical region listed is the thigh.

Question 31

The total number of lobes in both lungs together is?

Accepted Answer

Answer reason: Adding these together yields a total of five lobes. Options listing 2–4 underestimate the right-sided lobar division or incorrectly assume symmetry between lungs. This is a basic anatomical fact often tested to support assessment localization (e.g., auscultation and pathology distribution).

Question 32

The vertebral column has?

Accepted Answer

Answer reason: Specifically, there are 24 individual vertebrae (7 cervical, 12 thoracic, 5 lumbar) plus the sacrum and coccyx as two additional fused bones. Options like 24 reflect only the unfused vertebrae and omit the fused segments. The remaining higher counts correspond to counting separate vertebrae before fusion (e.g., in infancy), not the typical adult anatomy referenced by such questions.

Question 33

Most preferred vein for blood sample collection?

Accepted Answer

Answer reason: The median cubital vein in the antecubital fossa is typically the most prominent and stable vein, making needle entry easier and reducing the likelihood of rolling and hematoma. It is generally safer than the basilic vein, which lies closer to the brachial artery and median nerve, increasing complication risk. The cephalic vein can be used when needed but is often smaller or more mobile than the median cubital, so it is usually a second choice.

Question 34

Ankle bones are called?

Accepted Answer

Answer reason: Carpals are the wrist bones, not the ankle. Phalanges are the toe (and finger) bones distal to the metatarsals. Metatarsals form the midfoot/forefoot between tarsals and phalanges, so they are not considered the ankle bones.

Question 35

Fluid in joints is called?

Accepted Answer

Answer reason: This fluid also helps nourish the avascular cartilage and contributes to shock absorption. The other options refer to fluids in different body compartments: cerebral relates to the central nervous system, plasma is the liquid component of blood, and lymph circulates in the lymphatic system. Therefore the correct term for joint fluid is the one associated with synovial joints.

Question 36

The number of cervical vertebrae is ________?

Accepted Answer

Answer reason: The cervical region spans the neck and is numbered C1–C7. Thoracic count (12) is a common distractor because it is the next segment and is associated with rib articulation. Therefore, the only option consistent with standard human anatomy for cervical vertebrae is 7.

Question 37

Which bone in our body is the size of a grain of rice?

Accepted Answer

Answer reason: The stapes is extremely small (only a few millimeters) and is commonly compared in size to a grain of rice. It transmits vibrations from the incus to the oval window of the cochlea, so its tiny size is anatomically expected. By contrast, the tailbone (coccyx), collarbone (clavicle), and jawbone (mandible) are large skeletal structures and cannot match that size comparison.

Question 38

Which bone in your body is nicknamed the "funny bone"?

Accepted Answer

Answer reason: The “funny bone” sensation occurs when the ulnar nerve is struck where it runs superficially in the cubital tunnel at the medial elbow (near the medial epicondyle). This nerve irritation produces tingling or electric pain radiating down the forearm into the ring and little fingers, which is characteristic of the ulnar nerve distribution. The ulna forms the medial part of the elbow region adjacent to this nerve’s vulnerable course, making it the best match among the listed bones. A common distractor is the humerus because the medial epicondyle is part of the humerus, but the nickname is tied to the ulnar nerve and its association with the ulna at the elbow.

Question 39

The smallest bone in the human body is _______?

Accepted Answer

Answer reason: The stapes (stirrup) sits at the oval window and is the smallest human bone by length and mass. Incus and malleus are also ossicles but are larger than the stapes. The hyoid is a relatively larger neck bone and is notable for not articulating with other bones, not for being the smallest.

Question 40

What type of joint is the shoulder?

Accepted Answer

Answer reason: A ball-and-socket configuration allows flexion/extension, abduction/adduction, internal/external rotation, and circumduction. This matches the shoulder where the humeral head articulates with the glenoid fossa. In contrast, hinge joints primarily permit movement in one plane, and pivot joints mainly permit rotation around a single axis.

Question 41

The longest cell in the body is?

Accepted Answer

Answer reason: Neurons can have axons that run from the spinal cord to the foot (e.g., sciatic nerve), making them the longest cells in the body. In contrast, blood cells are small and lack long projections, and most skin cells are short-lived epithelial cells. While some muscle fibers can be long, their typical lengths do not exceed the longest peripheral neuron axons.

Question 42

Which is present only in plant cells?

Accepted Answer

Answer reason: Mitochondria and ribosomes are found in both plant and animal cells because both require ATP production and protein synthesis. The endoplasmic reticulum is also present in both, serving key roles in protein/lipid processing and intracellular transport. Therefore the only option specific to plant cells among the choices is the photosynthetic organelle.

Question 43

The umbilical cord has?

Accepted Answer

Answer reason: The umbilical arteries carry deoxygenated blood and waste products from the fetus to the placenta, whereas the umbilical vein returns oxygenated, nutrient-rich blood to the fetus. This matches the expected cross-sectional structure of the cord and is the standard baseline when assessing for normal newborn findings. A common distractor is reversing the counts, but clinically the key abnormality to remember is a single umbilical artery (two-vessel cord), not two veins.

Question 44

Which structure in the human body serves as a junction between the respiratory system and the digestive system?

Accepted Answer

Answer reason: This structure connects the nasal/oral cavities to both the larynx/trachea anteriorly and the esophagus posteriorly, making it the functional junction for the respiratory and digestive systems. The larynx and trachea are dedicated airway structures, while the esophagus is dedicated to the digestive tract only. Clinically, this shared anatomy explains why protective reflexes during swallowing are necessary to prevent aspiration into the airway.

Question 45

The term “inferior” means?

Accepted Answer

Answer reason: Inferior means below or away from the head, pointing toward the lower part of the body. This directly corresponds to movement or position toward the feet. A common confusion is with “superior,” which means toward the head, not downward.

Question 46

What is the name of the narrow tube that connects the nasal cavity to the throat?

Accepted Answer

Answer reason: This portion forms the passage from the nasal cavity to the rest of the throat (leading to the oropharynx and laryngopharynx). The oral cavity is the mouth space and does not connect the nasal cavity. “Pharynx” is a broader term for the whole throat, but the specific connection from the nasal cavity is the nasopharynx.

Question 47

How many bones does an adult human skeleton have?

Accepted Answer

Answer reason: g., parts of the skull, sacrum, and coccyx). This standardized count is the one used in most anatomy and nursing science references for a typical adult. Alternative counts like 205, 207, or 209 can appear only when accounting for normal variants (such as accessory sutural bones), but they are not the accepted baseline exam answer. Therefore, the best single answer is the standard adult count.

Question 48

What is the name of the bone that forms the lower part of the nasal septum?

Accepted Answer

Answer reason: The vomer specifically makes up the lower portion of the septum, articulating with the maxillary and palatine crests. The maxilla contributes to the hard palate and supports the septum via its crest but is not the main septal bone. The nasal bones mainly form the bridge of the nose rather than the septum.

Question 49

What is the name of the bone that forms the base of the spine?

Accepted Answer

Answer reason: It is commonly described as the “base of the spine” because it supports and transmits upper-body weight into the pelvic girdle via the sacroiliac joints. The coccyx is inferior to the sacrum and represents the tailbone rather than the weight-bearing base. Lumbar vertebrae are part of the mobile lumbar spine above the sacrum, and the ilium is a pelvic bone, not a vertebral column component.

Question 50

Hip bone is also called?

Accepted Answer

Answer reason: The pelvic girdle consists of the paired hip bones that connect the axial skeleton to the lower limbs. The femur is the thigh bone (the proximal long bone of the lower limb), not the hip bone itself. The scapula is in the shoulder girdle, and the sacrum is a midline fused vertebral structure, distinct from the hip bones.

Train with a large NCLEX question bank and jump into a full exam-style simulator

Anatomy NCLEX Practice Test

Continue Learning