Question 1

What is Funny bone?

Accepted Answer

Answer reason: The "funny bone" refers to the ulnar nerve as it courses superficially behind the medial epicondyle of the humerus at the elbow. Striking this area compresses the nerve, causing tingling and pain radiating to the ring and little fingers. It is not a bone, muscle, or blood vessel.

Question 2

Which artery is palpated at the anterior border of masseter?

Accepted Answer

Answer reason: The facial artery, a branch of the external carotid, winds around the inferior border of the mandible just anterior to the masseter muscle. At this point it becomes superficial and is a standard site to palpate the facial pulse. The superficial temporal pulse is felt anterior to the ear over the zygomatic arch, and the occipital pulse is palpated along the superior nuchal line. The external carotid artery itself is not directly palpated as a pulse point.

Question 3

Arthrology is the study of?

Accepted Answer

Answer reason: Arthrology derives from the Greek 'arthron' meaning joint and 'logia' meaning study. It specifically examines the structure, function, and classification of joints. Osteology refers to bones, neurology to the nervous system, and cardiology to the heart, making them incorrect here.

Question 4

The lower jaw bone is known as?

Accepted Answer

Answer reason: The mandible is the bone forming the lower jaw and is the only movable bone of the skull (excluding the ossicles). It articulates with the temporal bones at the temporomandibular joints to enable chewing and speech. The maxilla is the upper jaw, the clavicle is the collarbone, and the patella is the kneecap.

Question 5

Which of the following segment of Brachial plexus does not give any branches?

Accepted Answer

Answer reason: In the brachial plexus, the divisions are simply the anterior and posterior splits of each trunk and do not give off any branches. Roots give branches such as the dorsal scapular and long thoracic nerves. Trunks give branches like the suprascapular nerve and nerve to subclavius. Cords give multiple branches including pectoral, subscapular, and thoracodorsal nerves.

Question 6

Which bone is called Beauty bone in Women?

Accepted Answer

Answer reason: The clavicle is commonly referred to as the “beauty bone” because its prominence at the base of the neck is considered aesthetically appealing, especially in slender individuals. Anatomically, it forms the anterior part of the shoulder girdle, articulating with the sternum and scapula. The sternum, maxilla, and radius do not carry this colloquial designation.

Question 7

Number of bones in hand is...?

Accepted Answer

Answer reason: Each human hand has 27 bones: 8 carpals in the wrist, 5 metacarpals in the palm, and 14 phalanges in the fingers. This count excludes variable sesamoid bones. Knowing the standard anatomy aids in assessing injuries and planning immobilization for fractures of the wrist, hand, or digits.

Question 8

What is the largest organ in the human body?

Accepted Answer

Answer reason: The skin is the largest organ of the human body, covering about 1.5–2.0 m² and accounting for roughly 15% of body weight. It provides barrier protection, thermoregulation, and sensory functions. While the liver is the largest internal organ, it is smaller than the entire integument.

Question 9

The hardest substance in the human body is?

Accepted Answer

Answer reason: Tooth enamel is the most mineralized tissue in the human body, composed of about 96% hydroxyapatite crystals. This high mineral content makes it harder than bone, which has a lower mineral content and an organic matrix. Cartilage and ligaments are primarily connective tissues with far less mineralization, so they are much softer.

Question 10

Largest gland of body?

Accepted Answer

Answer reason: The liver is the largest gland in the human body, weighing about 1.2–1.5 kg in adults. It has exocrine function by secreting bile and multiple metabolic roles. The pancreas is smaller, and the duodenum is part of the small intestine rather than a gland. The thyroid is the largest endocrine gland but not the largest gland overall.

Question 11

Which is the longest bone in the human body?

Accepted Answer

Answer reason: The femur (thigh bone) is the longest and strongest bone in the human body, extending from the hip to the knee. It supports significant body weight and serves as the primary lever for locomotion. The tibia is long but shorter than the femur; the fibula is slender and shorter; the patella is a sesamoid bone within the quadriceps tendon.

Question 12

Where is the liver located in the human body?

Accepted Answer

Answer reason: The liver lies predominantly in the right upper quadrant of the abdomen, just beneath the right hemidiaphragm and protected by the lower ribs. It may extend slightly across the midline via the left lobe. It is not in the chest and is not simply beside the pancreas, which is retroperitoneal behind the stomach. While the liver is superior to the right kidney, its location is best described as the upper right portion of the abdomen.

Question 13

The pituitary gland is located in which bone?

Accepted Answer

Answer reason: The pituitary gland sits in the sella turcica, a depression of the sphenoid bone at the skull base. This bony cradle protects the gland and is covered by the diaphragma sellae. It is not housed within the frontal, temporal, or ethmoid bones. Its proximity to the optic chiasm and cavernous sinuses is clinically significant in pituitary pathology.

Question 14

The clavicle is also known as the ________?

Accepted Answer

Answer reason: The clavicle is the long, S-shaped bone that connects the sternum to the scapula and is commonly called the collarbone. The term 'breast bone' refers to the sternum. The 'shoulder blade' is the scapula, and 'skull bone' is not a specific single bone. Therefore, the correct synonym for clavicle is collar bone.

Question 15

The bone that forms the back of the skull is?

Accepted Answer

Answer reason: The occipital bone forms the posterior aspect and much of the base of the skull. It contains the foramen magnum where the spinal cord passes to join the brain. In contrast, the frontal bone is anterior (forehead), temporal bones are lateral, and parietal bones form the roof and sides of the cranium.

Question 16

The left lung is smaller because of the presence of?

Accepted Answer

Answer reason: The left lung has a cardiac notch and is smaller because the heart occupies space in the left thoracic cavity within the mediastinum. Consequently, the left lung has only two lobes, while the right lung has three. The liver affects the right side, the stomach lies inferiorly, and the kidneys are retroperitoneal and do not determine lung size.

Question 17

The hardest constituent of the tooth is?

Accepted Answer

Answer reason: Tooth enamel is the most highly mineralized tissue in the human body, composed mainly of hydroxyapatite crystals, making it harder than dentin and bone. Dentin is less mineralized and more resilient, while bone is also softer than enamel. Pulp is soft connective tissue and not a hard tissue.

Question 18

How many bones are present in the Head?

Accepted Answer

Answer reason: The head includes 22 bones of the skull (8 cranial and 14 facial), plus 6 auditory ossicles (malleus, incus, stapes bilaterally) and the hyoid bone. This totals 29 bones. Some sources cite 22 for skull only, but the broader anatomic count for the head is 29, which best fits the question and options.

Question 19

The normal length of male urethra is about?

Accepted Answer

Answer reason: In adult males, the urethra measures approximately 18–20 cm, traversing the prostatic, membranous, and spongy (penile) segments. Shorter lengths such as 2–6 cm correspond to the female urethra or only portions of the male urethra. Therefore, the best estimate from the options is 20 cm, which aligns with standard anatomical references.

Question 20

Brain weight is...?

Accepted Answer

Answer reason: The average adult human brain weighs about 1200–1400 grams. Among the options provided, 1000 g is the closest approximation to the normal adult value. Neonates weigh much less (~350–400 g), and 250–750 g are below typical adult ranges. Therefore, 1000 gm is the best available choice.

Question 21

The heart is located in which cavity?

Accepted Answer

Answer reason: The heart resides in the thoracic cavity, specifically within the mediastinum and enclosed by the pericardium. The cranial cavity contains the brain, while the abdominal cavity holds digestive organs and the pelvic cavity contains pelvic viscera. Therefore, only the thoracic cavity correctly describes the heart’s anatomical location.

Question 22

Which organ of the following is present in abdominal cavity, just below diaphragm?

Accepted Answer

Answer reason: The liver lies in the right upper quadrant of the abdominal cavity immediately inferior to the diaphragm, conforming to its dome. The pancreas is retroperitoneal and sits posterior to the stomach, not directly under the diaphragm. The pharynx and tongue are structures of the upper aerodigestive tract and are not in the abdominal cavity. Therefore, the organ just below the diaphragm is the liver.

Question 23

Tongue is a _____?

Accepted Answer

Answer reason: The tongue is a muscular organ of the oral cavity composed of skeletal muscle covered by mucous membrane. It performs integrated functions including taste, articulation of speech, mastication, and swallowing—hallmarks of an organ. It is not a single cell or a single tissue type, and while it contains minor salivary glands, the tongue itself is not a gland.

Question 24

Study of Bones is called?

Accepted Answer

Answer reason: Osteology is the branch of anatomy that focuses on bones, including their structure, development, and disorders. Neurology pertains to the nervous system, hepatology to the liver, and pulmonology to the lungs. Therefore, the correct term for the study of bones is osteology.

Question 25

The space between two lungs is called?

Accepted Answer

Answer reason: The mediastinum is the central compartment of the thoracic cavity located between the two pleural sacs, and it contains structures such as the heart, great vessels, trachea, and esophagus. The pleural cavity is the potential space surrounding each lung individually, not the space between both lungs. Alveoli are microscopic air sacs within the lungs. The pericardium is the fibrous sac surrounding the heart.

Question 26

Which of the following is a sesamoid bone?

Accepted Answer

Answer reason: Sesamoid bones are small bones embedded within tendons where they pass over joints, functioning to modify pressure and reduce friction. The patella is the largest sesamoid bone, located within the quadriceps tendon at the knee. The femur, humerus, and radius are long bones and are not sesamoids.

Question 27

Longest cell in human body?

Accepted Answer

Answer reason: The longest cell in the human body is the neuron, specifically motor neurons whose axons can extend from the spinal cord to the foot, approaching a meter in length. The ovum is the largest cell by diameter, not length. Red blood cells are among the smallest cells (~7–8 µm), and bone cells are not elongated to this extent.

Question 28

Number of vertebrae in the spine is ...?

Accepted Answer

Answer reason: The vertebral column consists of 24 movable vertebrae: 7 cervical, 12 thoracic, and 5 lumbar. In addition, there are 5 sacral segments that fuse to form the sacrum and 4 coccygeal segments that fuse to form the coccyx. Counting each segment gives a total of 33 vertebrae, so the correct answer is 33.

Question 29

Smallest cell in our body is?

Accepted Answer

Answer reason: The human sperm is considered the smallest true cell in the body. In contrast, the ovum is the largest cell, and neurons are among the longest cells. Platelets are smaller than many cells but are anucleate cell fragments rather than true cells. Therefore, among the options, sperm is the correct choice.

Question 30

The hip bone is scientifically called?

Accepted Answer

Answer reason: The hip bone is commonly referred to as the pelvis, which consists of the two os coxae that form the pelvic girdle. The femur is the thigh bone, the tibia is the larger lower-leg bone, and the sacrum is a fused vertebral bone at the base of the spine. Thus, among the options, pelvis best matches the term for the hip bone.

Question 31

Which structure lies superficial to scalenus anterior?

Accepted Answer

Answer reason: The phrenic nerve descends vertically on the anterior surface of the anterior scalene muscle, lying superficial to it beneath the prevertebral fascia. In contrast, the subclavian artery and the trunks of the brachial plexus pass posterior to scalenus anterior within the interscalene triangle. The thoracic duct arches to the venous angle and is not positioned superficial to the anterior scalene.

Question 32

Hyoid is a bone of?

Accepted Answer

Answer reason: The hyoid is a U-shaped bone in the anterior neck that serves as an anchoring structure for the tongue via muscles and ligaments. It does not articulate with other bones and supports functions of swallowing and speech. Femur, radius, and scapula are long or flat bones of the limbs and shoulder, not related to tongue support.

Question 33

The hardest substance in the human body is?

Accepted Answer

Answer reason: Tooth enamel is the most mineralized tissue in the human body, composed of about 96% hydroxyapatite crystals, which gives it superior hardness. Bone, including the skull, contains a lower mineral content with collagen, making it less hard and more resilient. Cartilage is largely non-mineralized and far softer. Therefore, the hardest substance is tooth enamel.

Question 34

The smallest structural and functional unit of the body is?

Accepted Answer

Answer reason: The cell is the basic structural and functional unit of living organisms. Tissues are groups of similar cells, organs are composed of multiple tissues, and systems consist of multiple organs working together. Therefore, the smallest unit that carries out life processes is the cell.

Question 35

Length of oesophagus?

Accepted Answer

Answer reason: In adults, the esophagus measures approximately 25 cm from the cricoid cartilage (C6) to the gastroesophageal junction near T11. It includes short cervical and abdominal segments with a longer thoracic segment, yielding a total near 25–30 cm. Values like 60 cm, 80 cm, or 9 m greatly exceed normal human anatomy.

Question 36

Only movable bone of skull is?

Accepted Answer

Answer reason: The mandible is the only movable bone of the skull proper, forming the temporomandibular joint with the temporal bone to allow mastication and speech. Other cranial and facial bones are connected by immovable sutures. Ethmoid, maxilla, and nasal bones are fixed. While the ossicles move, they are not considered skull bones.

Question 37

Kidney is covered by a membrane?

Accepted Answer

Answer reason: Pleura covers the lungs and pericardium covers the heart. The kidneys are retroperitoneal organs and are enveloped by a fibrous renal capsule with surrounding fascia and fat; among the choices, the only kidney-associated covering is the so-called renal peritoneum. Therefore option C best matches the membrane related to the kidney.

Question 38

How many teeth in adult human?

Accepted Answer

Answer reason: An adult dentition normally consists of 32 permanent teeth: 8 incisors, 4 canines, 8 premolars, and 12 molars, including four third molars (wisdom teeth). This contrasts with the 20 primary (deciduous) teeth in children. While some adults may lack one or more wisdom teeth, the standard anatomical count is 32.

Question 39

Spinal Anastasia is given at?

Accepted Answer

Answer reason: In adults the spinal cord typically ends at the level of L1–L2, so spinal anesthesia is placed below this to avoid cord injury. The preferred interspaces are L3–L4 or L4–L5 in the subarachnoid space. L1–L2 is too high and risks cord damage, and L5–L6 does not exist in humans. L2–L4 is nonspecific and includes the higher, riskier L2–L3 level; L3–L4 is the standard site.

Question 40

The smallest bones in the human body are found in the...?

Accepted Answer

Answer reason: The smallest bones are the auditory ossicles of the middle ear: the malleus, incus, and stapes. The stapes is the tiniest, measuring only a few millimeters, and transmits sound vibrations at the oval window to the inner ear. Bones in the feet, fingers, and knees are much larger long or sesamoid bones. Therefore, the smallest bones are found in the ears.

Question 41

Smallest bone in human beings is?

Accepted Answer

Answer reason: The stapes of the middle ear is the smallest bone in the human body, measuring about 3 mm and transmitting sound vibrations from the incus to the oval window. The malleus and incus are also auditory ossicles but are larger than the stapes. The sphenoid is a large cranial bone, not comparable in size. Clinically, fixation of the stapes (otosclerosis) can cause conductive hearing loss.

Question 42

The largest cell in the human body is?

Accepted Answer

Answer reason: Among the listed options, nerve cells (neurons) are the largest due to their extreme length—some motor neurons can extend over a meter from the spinal cord to peripheral muscles. While the human ovum is the largest cell by volume, it is not an option here. Muscle cells can be long but generally are shorter and thicker than many neurons, and liver and kidney cells are comparatively small.

Question 43

Which part of cranial fossa is injured in Raccoon eyes?

Accepted Answer

Answer reason: Raccoon eyes (periorbital ecchymosis) result from blood tracking to the periorbital tissues after a fracture of the anterior cranial fossa, especially the orbital plate of the frontal bone. It is a classic sign of anterior skull base injury and may accompany CSF rhinorrhea. In contrast, Battle’s sign suggests middle cranial fossa (temporal bone) fracture. Therefore the injured part is the anterior cranial fossa.

Question 44

Largest gland of the body?

Accepted Answer

Answer reason: The liver is the largest gland in the human body, weighing about 1.2–1.5 kg in adults. It is an exocrine gland producing bile and also performs numerous metabolic functions. The thyroid and pancreas are much smaller glands by mass. Therefore, the correct choice is the liver.

Question 45

The thinnest bone of the human body is?

Accepted Answer

Answer reason: The stapes, one of the middle ear ossicles, is the smallest and lightest bone in the human body and has extremely thin crura and a delicate footplate, making it the thinnest. The incus and malleus are larger ossicles by comparison. The fibula is a long bone of the leg and is not the thinnest bone despite being slender.

Question 46

How many bones does a new born human baby have?

Accepted Answer

Answer reason: A newborn has about 270 bones because many skeletal elements are still separate and have not yet fused. With growth, bones such as those of the skull, sacrum, and coccyx fuse, resulting in the adult count of about 206 bones. This higher neonatal number reflects developmental anatomy and ossification patterns.

Question 47

What muscle is found under the breast?

Accepted Answer

Answer reason: The mammary gland lies on the anterior chest wall over the pectoralis major muscle, separated by the retromammary space. Sartorius is a thigh muscle, gluteus maximus is in the buttock, and biceps brachii is in the upper arm. Therefore, the muscle found under the breast is the pectoralis major.

Question 48

_____ is a term which refers to a depression in a bone?

Accepted Answer

Answer reason: A fossa is a shallow depression in a bone, often serving as an articular surface or site for muscle attachment. A condyle is a rounded articular prominence, not a depression. A tubercle is a small rounded projection, and a tuberosity is a larger, roughened projection. Therefore, fossa best fits the definition of a depression.

Question 49

Human teeth is an example of?

Accepted Answer

Answer reason: A tooth is composed of multiple specialized tissues—enamel, dentin, cementum, and pulp—working together for mastication and sensation, which defines an organ. Teeth are not bones; they lack bone cells and have different composition and development. A single "tissue" would refer to one component only, not the whole tooth, and enzymes are protein catalysts, not structures.

Question 50

Which is the smallest organ in the human body?

Accepted Answer

Answer reason: The pineal gland is a tiny midline endocrine organ, typically about 5–8 mm in length and weighing roughly 100–180 mg, making it smaller than the pituitary gland. The pituitary is around 1 cm and about 500–900 mg, and both the thymus and pancreas are much larger organs. Therefore, among the listed options, the pineal gland is the smallest organ.

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What is Funny bone?

Which artery is palpated at the anterior border of masseter?

Arthrology is the study of?

The lower jaw bone is known as?

Which of the following segment of Brachial plexus does not give any branches?

Which bone is called Beauty bone in Women?

Number of bones in hand is...?

What is the largest organ in the human body?

The hardest substance in the human body is?

Largest gland of body?

Which is the longest bone in the human body?

Where is the liver located in the human body?

The pituitary gland is located in which bone?

The clavicle is also known as the ________?

The bone that forms the back of the skull is?

The left lung is smaller because of the presence of?

The hardest constituent of the tooth is?

How many bones are present in the Head?

The normal length of male urethra is about?

Brain weight is...?

The heart is located in which cavity?

Which organ of the following is present in abdominal cavity, just below diaphragm?

Tongue is a _____?

Study of Bones is called?

The space between two lungs is called?

Which of the following is a sesamoid bone?

Longest cell in human body?

Number of vertebrae in the spine is ...?

Smallest cell in our body is?

The hip bone is scientifically called?

Which structure lies superficial to scalenus anterior?

Hyoid is a bone of?

The hardest substance in the human body is?

The smallest structural and functional unit of the body is?

Length of oesophagus?

Only movable bone of skull is?

Kidney is covered by a membrane?

How many teeth in adult human?

Spinal Anastasia is given at?

The smallest bones in the human body are found in the...?

Smallest bone in human beings is?

The largest cell in the human body is?

Which part of cranial fossa is injured in Raccoon eyes?

Largest gland of the body?

The thinnest bone of the human body is?

How many bones does a new born human baby have?

What muscle is found under the breast?

_____ is a term which refers to a depression in a bone?

Human teeth is an example of?

Which is the smallest organ in the human body?

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