Question 1

A patient presents with difficulty moving their eyes laterally and complains of double vision when looking to the side. Which cranial nerve is most likely affected, and how would you test its function?

Accepted Answer

Cranial Nerve VI (Abducens); ask the patient to abduct their eye

Question 2

Which structure separates the frontal lobe from the parietal lobe in the brain?

Accepted Answer

Central sulcus

Question 3

A lesion in the postcentral gyrus would most likely result in which of the following deficits?

Accepted Answer

Loss of somatic sensory perception

Question 4

Which of the following best describes the function of the phrenic nerve?

Accepted Answer

Innervates the diaphragm, enabling breathing

Question 5

A patient has lost sensation in the skin of their external genitalia and has weakness in their inferior abdominal muscles. Which nerve is most likely damaged?

Accepted Answer

Ilioinguinal nerve

Question 6

Which of the following is the correct sequence of cerebrospinal fluid (CSF) flow through the ventricles of the brain?

Accepted Answer

Lateral ventricle → third ventricle → cerebral aqueduct → fourth ventricle

Question 7

Damage to which nerve would most likely result in an inability to extend the elbow and wrist, as well as loss of sensation on the posterior arm?

Accepted Answer

Radial nerve

Question 8

Which of the following structures is responsible for producing cerebrospinal fluid (CSF)?

Accepted Answer

Choroid plexus

Question 9

A patient is unable to abduct their arm at the shoulder and has atrophy of the deltoid muscle. Which nerve is most likely injured?

Accepted Answer

Axillary nerve

Question 10

Which cranial nerve is responsible for the sense of smell, and how would you test its function?

Accepted Answer

Cranial Nerve I (Olfactory); ask the patient to identify familiar odors

Question 11

Which of the following best describes the function of the superior gluteal nerve?

Accepted Answer

Innervates the gluteus medius and tensor fasciae latae

Question 12

A patient presents with hearing loss and balance problems. Which part of the ear is most likely affected?

Accepted Answer

Inner ear (cochlea and semicircular canals)

Question 13

Which structure connects the two cerebral hemispheres and allows communication between them?

Accepted Answer

Corpus callosum

Question 14

Which extrinsic eye muscle is responsible for abduction of the eye, and which cranial nerve innervates it?

Accepted Answer

Lateral rectus; Cranial Nerve VI (Abducens)

Question 15

Which of the following is the correct order of the meninges from superficial to deep?

Accepted Answer

Dura mater → arachnoid mater → pia mater

Question 16

A patient has difficulty flexing their wrist and fingers, and has numbness in the lateral palm. Which nerve is most likely affected?

Accepted Answer

Median nerve

Question 17

Which structure in the eye is responsible for focusing light onto the retina?

Accepted Answer

Lens

Question 18

Which nerve innervates the hamstring muscles and flexor digitorum longus?

Accepted Answer

Tibial branch of the sciatic nerve

Question 19

Which of the following best describes the function of the arbor vitae?

Accepted Answer

White matter in the cerebellum that coordinates motor activity

Question 20

A patient presents with loss of sensation and motor function in the adductor longus and gracilis muscles. Which nerve is most likely damaged?

Accepted Answer

Obturator nerve

Study Guide: Nervous System, Special Senses, and Associated Nerves

Study Guide - Practice Questions

Study Guide - Flashcards