Question 1

Which of the following boney landmarks is described by, "large, blunt, irregularly shaped process, such as that found on the lateral aspect of the proximal femur"?

Accepted Answer

Answer reason: A trochanter is a large, blunt, irregularly shaped bony projection unique to the femur, notably the greater and lesser trochanters near the proximal end. The description specifically matches the greater trochanter on the lateral aspect of the proximal femur. In contrast, a tubercle is typically a small rounded projection, and a tuberosity is a larger roughened area for muscle attachment but not the classic named lateral proximal femur process. A condyle refers to a smooth, rounded articular prominence involved in joint surfaces, which does not fit the irregular process described.

Question 2

The Atlas and the Axis?

Accepted Answer

Answer reason: The core principle is that the atlas (C1) and axis (C2) are the first two vertebrae of the cervical spine and form the superior-most portion of the vertebral column. They are vertebrae by definition, so they are found within the vertebral column’s vertebrae. They are specifically cervical vertebrae, located in the neck region. Because they occupy C1 and C2, they constitute the first two bones of the spinal column at the superior aspect, making each individual statement true.

Question 3

How many pairs of Cranial Nerves are in Humans?

Accepted Answer

Answer reason: This is a fixed anatomy fact used clinically for neuro assessment (e.g., CN II vision, CN VII facial movement, CN X gag/voice). Choices like 10 or 20 reflect under- or over-counting and do not match the standard anatomical enumeration. Therefore the correct count of cranial nerve pairs in humans is 12.

Question 4

The largest Gland in the body is ?

Accepted Answer

Answer reason: It also has extensive metabolic and detoxification roles, but its classification as a gland in this context relates to bile production. The pancreas is an important mixed (endocrine/exocrine) gland but is much smaller in overall mass. Kidney and spleen are vital organs but are not considered the largest gland.

Question 5

The human skeleton is made of a total of ?

Accepted Answer

Answer reason: This total reflects fused structures in adulthood (e.g., sacrum and coccyx, and fusion of some skull bones) that reduce the higher bone count seen in infants. The other numeric options do not match the accepted adult reference value used in basic anatomy. Therefore, the best answer is the adult total bone count.

Question 6

Type of muscles -?

Accepted Answer

Answer reason: Since each of these is a recognized muscle type, the option that includes all listed categories is the most complete and correct. Choosing only one of the first three would be incomplete because it omits other major muscle tissue classes. This classification is foundational for understanding organ function and related clinical conditions (e.g., motility disorders, cardiomyopathies, neuromuscular disease).

Question 7

Total number of facial bone?

Accepted Answer

Answer reason: This count includes paired bones (maxillae, zygomatics, nasals, lacrimals, palatines, inferior nasal conchae) plus two unpaired bones (mandible and vomer). Adding these (6 pairs = 12 bones) + 2 unpaired yields 14 total facial bones. A common confusion is mixing in cranial bones, which would change the total but does not apply to the facial skeleton.

Question 8

The length of cervix is?

Accepted Answer

Answer reason: 3.5 cm The adult, nonpregnant cervix has a typical length of about 2.5–3.5 cm, with many exam references using ~3 cm as the standard. Among the choices, 3.5 cm best matches the upper end of the normal anatomic range taught for cervical length. The 4.5 cm option is generally longer than expected for the cervix alone and is more consistent with larger uterine dimensions rather than the cervical canal. The 1.5 cm option would be unusually short in a nonpregnant cervix and is more suggestive of cervical shortening seen in pregnancy-related assessments.

Question 9

Normal bone cell is known as ?

Accepted Answer

Answer reason: Osteocytes are derived from osteoblasts after the latter become embedded in the bone they produced. Osteoblasts are primarily bone-forming cells on bone surfaces, and osteoclasts are multinucleated bone-resorbing cells, so neither represents the typical mature bone cell. Monocytes are circulating leukocytes and are not bone matrix cells, even though osteoclasts arise from the monocyte-macrophage lineage.

Question 10

Anterior fontanelle is also called ?

Accepted Answer

Answer reason: This landmark is used in newborn head assessment and correlates with the area that normally closes around 12–18 months. Lambda refers to the posterior fontanelle region (junction of sagittal and lambdoid sutures), which is smaller and closes earlier. Vertex and glabella are cranial surface landmarks but do not name the anterior fontanelle.

Question 11

Total Muscle In human Body?

Accepted Answer

Answer reason: This range accounts for variability in how small or accessory muscles are counted and how muscles are subdivided. Among the options, 639 best matches the widely accepted approximate total. The other numbers are either far too low or unrealistically high for typical skeletal muscle counts used in basic anatomy.

Question 12

Which auditory ossicle is of hammer shaped?

Accepted Answer

Answer reason: The hammer-shaped ossicle is the malleus, which attaches to the tympanic membrane and transmits vibrations to the incus. Incus is not hammer-shaped because it has a body and two crura resembling an anvil. Stapes is the smallest ossicle and stirrup-shaped, while vomar is not an ossicle at all but a bone of the nasal septum.

Question 13

The small intestine is about.................?

Accepted Answer

Answer reason: Among the choices, 5 meters is the best standard approximation commonly taught for living anatomy. The shorter lengths (3 m or 4 m) underestimate typical adult measurements, while 7 m is on the higher end and less often used as the single “about” value in basic exam questions. Therefore the most defensible single best estimate is the 5 m option.

Question 14

Which of the following is not paired ?

Accepted Answer

Answer reason: The vomer is a single, unpaired bone that forms the inferior part of the nasal septum in the midline. In contrast, the palatine bones and maxillae are paired bones forming parts of the hard palate and upper jaw on each side. Therefore, the only option that is not paired is the vomer.

Question 15

In a child eruption of permanent teeth starts at the age of?

Accepted Answer

Answer reason: This marks the transition from primary to mixed dentition and is a standard pediatric dental development milestone. Earlier ranges like 2–3 or 3–5 years correspond to primary tooth eruption rather than permanent teeth. Later ages such as 10–12 years are associated with eruption of premolars and second molars, not the onset of permanent dentition.

Question 16

Which one is the largest gland in the human body?

Accepted Answer

Answer reason: It functions as a major exocrine gland by producing bile and also carries out extensive metabolic and detoxification roles. The pituitary and pancreas are glands but are much smaller in size compared with the liver. Skin is the largest organ overall, but it is not classified as the body’s largest gland in standard anatomy questions.

Question 17

Name of the shoulder bone is?

Accepted Answer

Answer reason: This makes it the key bone commonly referred to as the shoulder bone in basic anatomy questions. The acetabulum is the hip socket, not related to the shoulder joint. “Pelvic” refers to the pelvis/hip region rather than the upper limb girdle.

Question 18

A space called the ______ is found between the two pleural cavities –?

Accepted Answer

Answer reason: That central compartment is the mediastinum, anatomically located between the two pleural sacs. The pleural cavity is the potential space surrounding each lung, so it cannot be the structure between both pleural cavities. “Soleus” is a calf muscle and unrelated to thoracic anatomy.

Question 19

The purpose of the rib case is to ?

Accepted Answer

Answer reason: It encloses the heart (within the mediastinum) and both lungs, reducing injury risk while still allowing respiratory movement via costal joints. The stomach is primarily protected by the abdominal wall and partially by lower ribs, but it is not the main protective target of the rib cage. The brain is protected by the skull, and the kidneys are retroperitoneal and only partially covered by the lower ribs.

Question 20

Which bone forms the forehead?

Accepted Answer

Answer reason: This matches the anatomic landmark being asked (forehead = anterior skull). The parietal bones form the superior-lateral cranial vault, the occipital bone forms the posterior skull/base, and the temporal bones form the lateral skull around the ear region. Therefore the option identifying the frontal bone is the single best answer.

Question 21

Femoral ring is bounded by all except?

Accepted Answer

Answer reason: The artery lies lateral to the femoral vein within the femoral sheath but does not form the lateral boundary of the ring. Therefore it is not considered a bounding structure of the femoral ring. Recognizing these relations explains why femoral hernias emerge medial to the femoral vein rather than adjacent to the artery.

Question 22

Which structure is known as voice box?

Accepted Answer

Answer reason: It is located in the anterior neck between the pharynx and the trachea and also plays a key role in protecting the airway during swallowing. The pharynx is mainly a shared passageway for air and food, not the primary sound-producing structure. The oesophagus is for food transport, and intercostal muscles assist ventilation but do not generate voice.

Question 23

The hyaline cartilage of larynx are except?

Accepted Answer

Answer reason: The thyroid, cricoid, and arytenoid cartilages are primarily hyaline, providing rigid structural support to maintain airway patency. In contrast, the epiglottis is composed of elastic cartilage, which gives it flexibility to fold over the laryngeal inlet during swallowing. Therefore it is the exception among the listed cartilages.

Question 24

How many anatomical lobes are in the liver?

Accepted Answer

Answer reason: These are the right and left lobes plus the caudate and quadrate lobes on the visceral surface. While some clinical/surgical descriptions emphasize functional lobes (often two) based on biliary and vascular supply, the question asks specifically for anatomical lobes. Therefore the option indicating four lobes best matches standard anatomical classification.

Question 25

Length of pharynx in an adult is about?

Accepted Answer

Answer reason: In adults, the pharynx spans from the base of the skull to the lower border of the cricoid cartilage (where it continues as the esophagus), giving an overall length around 12–14 cm. The 6–8 cm choice is closer to shorter segment lengths (e.g., individual subparts) and underestimates the whole structure. The 20–25 cm and 50–54 cm options are far too long for the pharynx and are more in the range of longer tubular structures or clearly unrealistic for this region.

Question 26

The muscle of injection in Shoulder is called?

Accepted Answer

Answer reason: This site provides adequate muscle thickness for small-volume IM medications and many vaccines while allowing avoidance of major nerves and blood vessels when properly located. The biceps and triceps are upper arm muscles and are not standard “shoulder” IM injection sites; using them increases risk of improper placement or neurovascular injury. Therefore, the best answer is the deltoid.

Question 27

Which of the following structure is not encountered during epidural anesthesia?

Accepted Answer

Answer reason: The expected tissue planes traversed in the midline approach include supraspinous ligament, interspinous ligament, and then ligamentum flavum, after which the epidural space is entered. Penetration of the dura would indicate an unintended dural puncture and risks cerebrospinal fluid leak and post–dural puncture headache. Therefore the dura is the structure that should not be encountered when performing an epidural correctly.

Question 28

What is the angle of Louis ?

Accepted Answer

Answer reason: This palpable ridge is an important surface anatomy landmark used to identify the level of the 2nd costal cartilage/rib and to count ribs and intercostal spaces during exam. Because it is specifically defined by the articulation between the manubrium and the body of the sternum, this option directly matches the anatomical definition. Other choices describe related landmarks (like the 2nd rib) but are consequences of the landmark rather than its definition.

Question 29

Intercostal muscles are found?

Accepted Answer

Answer reason: Their primary role is to move the rib cage during ventilation, aiding inspiration and forced expiration by elevating or depressing the ribs. They are not located between vertebrae; those spaces are occupied by spinal and paraspinal musculature and ligaments. They also are not simply “in front of ribs,” because they lie within the rib spaces and form layered muscle sheets (external, internal, and innermost) spanning between ribs.

Question 30

Tongue is a....?

Accepted Answer

Answer reason: The tongue contains skeletal muscle, connective tissue, nerves, blood vessels, and a mucosal epithelial covering with specialized papillae, enabling speech, mastication, swallowing, and taste. A “tissue” would be a single type of similar cells (e.g., muscle tissue) rather than the whole integrated structure. It is not a “cell,” and while it contains minor salivary glands, the tongue itself is not classified as a single gland.

Question 31

How many unpaired cartilage are present in larynx?

Accepted Answer

Answer reason: The unpaired cartilages are the thyroid, cricoid, and epiglottic cartilages, totaling three. The remaining laryngeal cartilages (arytenoid, corniculate, and cuneiform) are paired, which is a common point of confusion that can lead to overcounting. Therefore, the count of unpaired laryngeal cartilages is three.

Question 32

What portion of the vertebral column has 12 vertebrae?

Accepted Answer

Answer reason: The thoracic spine contains 12 vertebrae (T1–T12) and each typically articulates with a pair of ribs. By contrast, the cervical region has 7 vertebrae and the lumbar region has 5. The sacrum consists of fused segments rather than 12 separate vertebrae.

Question 33

The largest spinal vertebra in the human body ....?

Accepted Answer

Answer reason: Lumbar vertebrae have the largest vertebral bodies to provide strength and stability for weight bearing and movement of the trunk. Cervical vertebrae are smaller and specialized for mobility and supporting the head, while thoracic vertebrae are intermediate and articulate with ribs. The sacrum is a fused set of vertebrae, so it is not considered the largest single vertebra in typical anatomy questions.

Question 34

The space between the vocal cords is known as?

Accepted Answer

Answer reason: This is the functional “gap” that changes size with vocal fold abduction/adduction for breathing and phonation. The epiglottis is a flap that covers the laryngeal inlet during swallowing, not the space between the cords. Adam’s apple is the laryngeal prominence of the thyroid cartilage, and the vermis is a midline cerebellar structure.

Question 35

Largest cell in human body is ?

Accepted Answer

Answer reason: Red blood cells and platelets are much smaller anucleate elements optimized for circulation. Neurons can be the longest cells by axon length, but their cell bodies are not the largest by diameter. Therefore the ovum best fits the concept of the largest human cell.

Question 36

The spine consists of?

Accepted Answer

Answer reason: Although the sacral and coccygeal segments fuse in adulthood to form the sacrum and coccyx, the standard count by vertebral segments remains 33. This makes the total clearly greater than 10 and far less than 100. The 40 option does not match any normal vertebral segmentation scheme.

Question 37

Which of the following bones is part of the axial skeleton?

Accepted Answer

Answer reason: The sternum is a midline thoracic bone that articulates with ribs via costal cartilages, forming the anterior portion of the rib cage. In contrast, the femur, ulna, and fibula are appendicular bones of the limbs. Therefore, the thoracic midline bone listed is the correct choice.

Question 38

Which nerve is known as “wandering nerve”?

Accepted Answer

Answer reason: The vagus nerve (CN X) has the longest, most extensive pathway, traveling from the brainstem through the neck into the thorax and abdomen to innervate multiple organs. Because it “wanders” far beyond the head and neck, it is historically termed the “wandering nerve.” By contrast, the facial, trigeminal, and hypoglossal nerves have more regionally confined distributions primarily in the head and neck.

Question 39

The structural unit of nervous tissue is –?

Accepted Answer

Answer reason: The neuron is the basic structural and functional unit because it contains the cell body and all processes required for impulse conduction and synaptic communication. Axons and dendrites are only parts of a neuron, not independent units of tissue organization. A synapse is a junction between cells and represents a site of communication rather than the fundamental unit itself.

Question 40

DNA is located in –?

Accepted Answer

Answer reason: Nucleus In eukaryotic cells, the primary location of genetic material is the nucleus, where DNA is packaged into chromosomes and regulated for replication and transcription. This compartmentalization protects DNA and organizes gene expression via nuclear machinery. Ribosomes are sites of protein synthesis and do not contain genomic DNA. The Golgi body modifies and packages proteins and lipids, not genetic material.

Question 41

Which taste bud is present on the lateral sides of the tongue?

Accepted Answer

Answer reason: Therefore the option that best matches the question’s location cue (lateral sides) is sour. Sweet is classically taught at the tip (anterior tongue), and bitter at the back (posterior tongue). Although modern physiology recognizes taste receptors across much of the tongue, exam questions commonly follow this traditional distribution.

Question 42

Largest part of brain?

Accepted Answer

Answer reason: It contains the cerebral cortex and extensive subcortical white matter responsible for higher cognitive functions, sensory integration, and voluntary motor control. The cerebellum is substantial but much smaller in overall size, primarily coordinating balance and fine motor activity. The medulla and pons are brainstem structures that are considerably smaller and mainly regulate vital autonomic and relay functions.

Question 43

What is the shape of thyroid gland?

Accepted Answer

Answer reason: This bilobed arrangement creates the classic “butterfly” appearance when viewed from the front. The other options describe single, simple shapes and do not reflect the paired-lobe anatomy with a connecting bridge. Knowing this morphology supports understanding of neck exam findings such as goiter distribution and surgical landmarks.

Question 44

Which of the following cavities is lined by the connective tissue peritoneum?

Accepted Answer

Answer reason: Among the listed cavities, the abdominal cavity is classically described as being lined by peritoneum, making it the best single choice. The thoracic cavity is lined by pleura (lungs) and pericardium (heart), not peritoneum. The cephalic cavity is lined by meninges, and while the pelvic cavity is part of the broader abdominopelvic region, TEAS-style anatomy questions typically pair peritoneum most directly with the abdominal cavity.

Question 45

Which of the following bones articulate at a synovial joint?

Accepted Answer

Answer reason: The radius and ulna form synovial joints (proximal and distal radioulnar joints) that allow forearm pronation and supination. In contrast, most skull bone articulations are fibrous sutures, which are not synovial. The pubic bones meet at the pubic symphysis, a cartilaginous (symphysis) joint with limited movement rather than a synovial cavity.

Question 46

Which of the following types of bones is responsible for producing red blood cells in the human body?

Accepted Answer

Answer reason: In adults, red marrow is concentrated primarily in flat bones such as the sternum, ribs, skull, pelvis, and scapulae, making these the key bone type associated with ongoing RBC production. Long bones largely contain yellow (fatty) marrow in the diaphysis in adulthood, so they are less responsible for routine hematopoiesis. Sesamoid bones mainly function to modify tendon pull and reduce friction, not marrow-based blood cell production.

Question 47

Which nerves are attached to the brain and emerge from the skull?

Accepted Answer

Answer reason: In contrast, spinal nerves arise from the spinal cord and exit through intervertebral foramina, not the skull. “Thoracic” and “sacral” describe regional groups of spinal nerves, so they also do not meet the definition of emerging from the skull. Therefore the only option consistent with the anatomical origin and exit point is the cranial nerves.

Question 48

The number of gills present in Osteichthyes is _____?

Accepted Answer

Answer reason: This differentiates them from cartilaginous fishes, which commonly have multiple exposed gill slits (often 5–7) without an operculum. The correct choice matches the typical zoology/anatomy fact tested for Osteichthyes respiration. The other numeric options (2, 10, 12 pairs) are not consistent with recognized branchial anatomy of bony fishes.

Question 49

In adult spinal anaesthesia given at?

Accepted Answer

Answer reason: The safest routine interspaces are L3–L4 or L4–L5, where the needle enters the lumbar cistern containing cauda equina nerve roots. This allows spread of local anesthetic in CSF while avoiding the spinal cord itself. Compared with higher levels such as L1–L2, the L3–L4 space provides a safer margin below the conus in most adults.

Question 50

Number of bones in skull is?

Accepted Answer

Answer reason: This total comprises 8 cranial bones (protecting the brain) and 14 facial bones (forming the framework of the face). These bones are largely fused by sutures in adulthood, which is why the number is stable in standard anatomy counts. Options like 24, 26, or 28 typically reflect adding other associated bones (e.g., auditory ossicles) or counting variations, but they are not included in the conventional “skull bones” total.

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