NBCE Part 1 - General Anatomy | Questions with 100%
Correct Answers | Verified | Updated 2024
Course
NBCE
1. Which of the following bones is a part of the axial skeleton?
a) Femur
b) Humerus
c) Sternum
d) Scapula
Answer: c) Sternum
Rationale: The axial skeleton consists of bones that form the central axis of the body,
including the skull, vertebral column, and rib cage (sternum). The femur, humerus, and
scapula are part of the appendicular skeleton.
2. The primary function of the cerebellum is:
a) Sensory processing
b) Motor coordination
c) Memory formation
d) Language comprehension
Answer: b) Motor coordination
Rationale: The cerebellum plays a critical role in fine-tuning motor activity, balance, and
coordination. Sensory processing occurs in other brain regions, such as the parietal lobe,
while memory and language involve the hippocampus and left hemisphere, respectively.
3. Which type of epithelial tissue is found lining the trachea?
a) Simple squamous
b) Stratified squamous
c) Pseudostratified ciliated columnar
d) Transitional
Answer: c) Pseudostratified ciliated columnar
Rationale: The trachea is lined by pseudostratified ciliated columnar epithelium, which helps
trap and move particles out of the respiratory tract through the action of cilia.
4. The left atrium receives blood from which of the following?
, a) Pulmonary arteries
b) Pulmonary veins
c) Superior vena cava
d) Inferior vena cava
Answer: b) Pulmonary veins
Rationale: The pulmonary veins carry oxygenated blood from the lungs to the left atrium,
whereas the superior and inferior venae cavae carry deoxygenated blood to the right atrium.
5. Which of the following muscles is part of the rotator cuff?
a) Deltoid
b) Biceps brachii
c) Supraspinatus
d) Trapezius
Answer: c) Supraspinatus
Rationale: The rotator cuff consists of four muscles: supraspinatus, infraspinatus, teres
minor, and subscapularis. These muscles stabilize the shoulder joint. Deltoid, biceps brachii,
and trapezius have different functions.
6. What type of joint is the atlantoaxial joint?
a) Hinge
b) Saddle
c) Pivot
d) Ball and socket
Answer: c) Pivot
Rationale: The atlantoaxial joint, located between the first and second cervical vertebrae
(atlas and axis), is a pivot joint, allowing for rotation of the head (as in shaking the head
"no").
7. Which of the following structures connects muscles to bones?
a) Ligaments
b) Tendons
c) Fascia
d) Cartilage
Answer: b) Tendons
Rationale: Tendons are connective tissue structures that attach muscles to bones. Ligaments
connect bones to other bones, fascia surrounds muscles, and cartilage provides cushioning at
joints.
,8. Which nerve innervates the diaphragm?
a) Vagus nerve
b) Phrenic nerve
c) Spinal accessory nerve
d) Hypoglossal nerve
Answer: b) Phrenic nerve
Rationale: The phrenic nerve (C3, C4, C5) innervates the diaphragm, which is essential for
breathing. The vagus nerve innervates parasympathetic organs, while the spinal accessory
and hypoglossal nerves are involved in shoulder and tongue movement, respectively.
9. Which structure is responsible for producing cerebrospinal fluid (CSF)?
a) Cerebral cortex
b) Choroid plexus
c) Pituitary gland
d) Basal ganglia
Answer: b) Choroid plexus
Rationale: The choroid plexus, located within the ventricles of the brain, produces
cerebrospinal fluid (CSF), which cushions and protects the brain and spinal cord.
10. Which of the following arteries directly supplies blood to the brain?
a) Carotid artery
b) Femoral artery
c) Brachial artery
d) Aortic arch
Answer: a) Carotid artery
Rationale: The carotid arteries, specifically the internal carotid arteries, supply oxygenated
blood to the brain. The femoral and brachial arteries supply blood to the leg and arm,
respectively, and the aortic arch is a portion of the heart's main artery.
11. Which of the following structures passes through the foramen magnum?
a) Optic nerve
b) Spinal cord
c) Internal jugular vein
d) Brachial plexus
, Answer: b) Spinal cord
Rationale: The foramen magnum is the large opening at the base of the skull through which
the spinal cord exits the cranial cavity. The optic nerve passes through the optic canal, and the
internal jugular vein exits via the jugular foramen.
12. The spleen is located in which abdominal quadrant?
a) Right upper quadrant
b) Left upper quadrant
c) Right lower quadrant
d) Left lower quadrant
Answer: b) Left upper quadrant
Rationale: The spleen is situated in the left upper quadrant (LUQ) of the abdomen, beneath
the ribcage. The liver is in the right upper quadrant (RUQ), and the appendix is in the right
lower quadrant (RLQ).
13. Which of the following is a hinge joint?
a) Elbow
b) Shoulder
c) Hip
d) Wrist
Answer: a) Elbow
Rationale: The elbow is a hinge joint, allowing flexion and extension. The shoulder and hip
are ball-and-socket joints, and the wrist is a condyloid joint.
14. Which layer of the heart contains the contractile muscle tissue?
a) Endocardium
b) Myocardium
c) Epicardium
d) Pericardium
Answer: b) Myocardium
Rationale: The myocardium is the thick, muscular layer responsible for the heart’s
contractile function. The endocardium lines the heart chambers, and the epicardium forms
part of the heart’s outer layer.
15. The transverse foramina are characteristic of which vertebral region?
Correct Answers | Verified | Updated 2024
Course
NBCE
1. Which of the following bones is a part of the axial skeleton?
a) Femur
b) Humerus
c) Sternum
d) Scapula
Answer: c) Sternum
Rationale: The axial skeleton consists of bones that form the central axis of the body,
including the skull, vertebral column, and rib cage (sternum). The femur, humerus, and
scapula are part of the appendicular skeleton.
2. The primary function of the cerebellum is:
a) Sensory processing
b) Motor coordination
c) Memory formation
d) Language comprehension
Answer: b) Motor coordination
Rationale: The cerebellum plays a critical role in fine-tuning motor activity, balance, and
coordination. Sensory processing occurs in other brain regions, such as the parietal lobe,
while memory and language involve the hippocampus and left hemisphere, respectively.
3. Which type of epithelial tissue is found lining the trachea?
a) Simple squamous
b) Stratified squamous
c) Pseudostratified ciliated columnar
d) Transitional
Answer: c) Pseudostratified ciliated columnar
Rationale: The trachea is lined by pseudostratified ciliated columnar epithelium, which helps
trap and move particles out of the respiratory tract through the action of cilia.
4. The left atrium receives blood from which of the following?
, a) Pulmonary arteries
b) Pulmonary veins
c) Superior vena cava
d) Inferior vena cava
Answer: b) Pulmonary veins
Rationale: The pulmonary veins carry oxygenated blood from the lungs to the left atrium,
whereas the superior and inferior venae cavae carry deoxygenated blood to the right atrium.
5. Which of the following muscles is part of the rotator cuff?
a) Deltoid
b) Biceps brachii
c) Supraspinatus
d) Trapezius
Answer: c) Supraspinatus
Rationale: The rotator cuff consists of four muscles: supraspinatus, infraspinatus, teres
minor, and subscapularis. These muscles stabilize the shoulder joint. Deltoid, biceps brachii,
and trapezius have different functions.
6. What type of joint is the atlantoaxial joint?
a) Hinge
b) Saddle
c) Pivot
d) Ball and socket
Answer: c) Pivot
Rationale: The atlantoaxial joint, located between the first and second cervical vertebrae
(atlas and axis), is a pivot joint, allowing for rotation of the head (as in shaking the head
"no").
7. Which of the following structures connects muscles to bones?
a) Ligaments
b) Tendons
c) Fascia
d) Cartilage
Answer: b) Tendons
Rationale: Tendons are connective tissue structures that attach muscles to bones. Ligaments
connect bones to other bones, fascia surrounds muscles, and cartilage provides cushioning at
joints.
,8. Which nerve innervates the diaphragm?
a) Vagus nerve
b) Phrenic nerve
c) Spinal accessory nerve
d) Hypoglossal nerve
Answer: b) Phrenic nerve
Rationale: The phrenic nerve (C3, C4, C5) innervates the diaphragm, which is essential for
breathing. The vagus nerve innervates parasympathetic organs, while the spinal accessory
and hypoglossal nerves are involved in shoulder and tongue movement, respectively.
9. Which structure is responsible for producing cerebrospinal fluid (CSF)?
a) Cerebral cortex
b) Choroid plexus
c) Pituitary gland
d) Basal ganglia
Answer: b) Choroid plexus
Rationale: The choroid plexus, located within the ventricles of the brain, produces
cerebrospinal fluid (CSF), which cushions and protects the brain and spinal cord.
10. Which of the following arteries directly supplies blood to the brain?
a) Carotid artery
b) Femoral artery
c) Brachial artery
d) Aortic arch
Answer: a) Carotid artery
Rationale: The carotid arteries, specifically the internal carotid arteries, supply oxygenated
blood to the brain. The femoral and brachial arteries supply blood to the leg and arm,
respectively, and the aortic arch is a portion of the heart's main artery.
11. Which of the following structures passes through the foramen magnum?
a) Optic nerve
b) Spinal cord
c) Internal jugular vein
d) Brachial plexus
, Answer: b) Spinal cord
Rationale: The foramen magnum is the large opening at the base of the skull through which
the spinal cord exits the cranial cavity. The optic nerve passes through the optic canal, and the
internal jugular vein exits via the jugular foramen.
12. The spleen is located in which abdominal quadrant?
a) Right upper quadrant
b) Left upper quadrant
c) Right lower quadrant
d) Left lower quadrant
Answer: b) Left upper quadrant
Rationale: The spleen is situated in the left upper quadrant (LUQ) of the abdomen, beneath
the ribcage. The liver is in the right upper quadrant (RUQ), and the appendix is in the right
lower quadrant (RLQ).
13. Which of the following is a hinge joint?
a) Elbow
b) Shoulder
c) Hip
d) Wrist
Answer: a) Elbow
Rationale: The elbow is a hinge joint, allowing flexion and extension. The shoulder and hip
are ball-and-socket joints, and the wrist is a condyloid joint.
14. Which layer of the heart contains the contractile muscle tissue?
a) Endocardium
b) Myocardium
c) Epicardium
d) Pericardium
Answer: b) Myocardium
Rationale: The myocardium is the thick, muscular layer responsible for the heart’s
contractile function. The endocardium lines the heart chambers, and the epicardium forms
part of the heart’s outer layer.
15. The transverse foramina are characteristic of which vertebral region?
