Question 1

Which of the following best describes the function of the somatic nervous system within the peripheral nervous system?

Accepted Answer

It conducts impulses to skeletal muscles, allowing conscious control of movement.

Question 2

A patient presents with loss of taste sensation from the anterior two-thirds of the tongue and inability to close their eyelid. Which cranial nerve is most likely affected?

Accepted Answer

C.N. VII (Facial)

Question 3

Which type of sensory receptor is primarily responsible for detecting changes in temperature?

Accepted Answer

Thermoreceptors

Question 4

Which cranial nerve is the only one to extend beyond the head and neck region, providing parasympathetic innervation to thoracic and abdominal viscera?

Accepted Answer

C.N. X (Vagus)

Question 5

A person is unable to move their tongue properly, affecting speech and swallowing. Which cranial nerve is most likely damaged?

Accepted Answer

C.N. XII (Hypoglossal)

Question 6

Which of the following is a function of the precommand level of motor control?

Accepted Answer

Programming and instructing movements, modified by feedback

Question 7

Which receptor type is found in the retina and is responsible for detecting changes in light energy?

Accepted Answer

Photoreceptors

Question 8

A patient cannot abduct their eye (move it laterally). Which cranial nerve is most likely impaired?

Accepted Answer

C.N. VI (Abducens)

Question 9

Which of the following best describes the function of proprioceptors?

Accepted Answer

They monitor the degree of stretch in muscles, tendons, and joints.

Question 10

Which cranial nerve is responsible for carrying auditory information from the cochlea to the brain?

Accepted Answer

C.N. VIII (Vestibulocochlear)

Question 11

Which of the following is TRUE regarding the autonomic nervous system?

Accepted Answer

It regulates involuntary activities such as heart rate and digestion.

Question 12

Which cranial nerve provides parasympathetic innervation to the parotid salivary gland?

Accepted Answer

C.N. IX (Glossopharyngeal)

Question 13

Which of the following is a mechanoreceptor found in the skin that responds to deep pressure and vibration?

Accepted Answer

Pacinian corpuscle

Question 14

A patient has difficulty swallowing and a loss of taste sensation from the posterior third of the tongue. Which cranial nerve is most likely affected?

Accepted Answer

C.N. IX (Glossopharyngeal)

Question 15

Which of the following best describes the function of nociceptors?

Accepted Answer

They detect pain or potentially damaging stimuli.

Question 16

Which cranial nerve is responsible for motor innervation to the muscles of mastication?

Accepted Answer

C.N. V (Trigeminal)

Question 17

Which of the following is the correct order of sensory neural integration from the initial stimulus to perception?

Accepted Answer

Receptor level → Circuit level → Perceptual level

Question 18

A patient presents with loss of vision in one eye. Which cranial nerve is most likely damaged?

Accepted Answer

C.N. II (Optic)

Question 19

Which of the following best describes the function of the projection level of motor control?

Accepted Answer

It sends instructions to the spinal cord and relays a copy of that information to higher levels.

Question 20

Which cranial nerve is responsible for motor innervation to the sternocleidomastoid and trapezius muscles?

Accepted Answer

C.N. XI (Accessory)

Peripheral Nervous System: Structure, Function, and Cranial Nerves

Study Guide - Practice Questions

Study Guide - Flashcards