Question 1

Which structure connects the left and right cerebral hemispheres, allowing communication between them?

Accepted Answer

Corpus callosum

Question 2

A patient presents with loss of smell. Which cranial nerve is most likely affected?

Accepted Answer

Olfactory nerve (CN I)

Question 3

Which meningeal layer is directly attached to the surface of the brain and spinal cord?

Accepted Answer

Pia mater

Question 4

The precentral gyrus is responsible for which function?

Accepted Answer

Primary motor control

Question 5

Which cranial nerve carries both sensory and motor information and is involved in facial expression and taste?

Accepted Answer

Facial nerve (CN VII)

Question 6

A lesion in the occipital lobe would most likely affect which function?

Accepted Answer

Visual processing

Question 7

Which structure is part of the diencephalon and acts as a relay station for sensory information?

Accepted Answer

Thalamus

Question 8

The arbor vitae is found in which brain region and is composed primarily of which type of matter?

Accepted Answer

Cerebellum; white matter

Question 9

Which cranial nerve is responsible for hearing and balance?

Accepted Answer

Vestibulocochlear nerve (CN VIII)

Question 10

A patient has difficulty moving their tongue. Which cranial nerve is most likely damaged?

Accepted Answer

Hypoglossal nerve (CN XII)

Question 11

Which of the following correctly describes the flow of cerebrospinal fluid (CSF) through the ventricular system?

Accepted Answer

Lateral ventricles → Third ventricle → Cerebral aqueduct → Fourth ventricle

Question 12

Which sinus runs along the superior edge of the falx cerebri and drains blood from the brain?

Accepted Answer

Superior sagittal sinus

Question 13

If the choroid plexus is damaged, which process would be most directly affected?

Accepted Answer

Production of cerebrospinal fluid (CSF)

Question 14

Which cranial nerve is involved in controlling most of the eye's movements, including opening the eyelid and pupil constriction?

Accepted Answer

Oculomotor nerve (CN III)

Question 15

Which structure separates the cerebrum from the cerebellum?

Accepted Answer

Tentorium cerebelli

Question 16

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

Accepted Answer

Glossopharyngeal nerve (CN IX)

Question 17

Which of the following is TRUE regarding the difference between white matter and gray matter in the CNS?

Accepted Answer

White matter contains myelinated axons; gray matter contains neuron cell bodies, dendrites, and axon terminals.

Question 18

Which cranial nerve is the only one to extend beyond the head and neck, innervating organs in the thorax and abdomen?

Accepted Answer

Vagus nerve (CN X)

Question 19

A patient presents with double vision and difficulty moving the eye downward and laterally. Which cranial nerve is most likely affected?

Accepted Answer

Trochlear nerve (CN IV)

Question 20

Which equation best represents the relationship between the volume of cerebrospinal fluid ($$V_{CSF}$$), the rate of production ($$R_p$$), and the rate of absorption ($$R_a) $$over time ($$t$$)?

Accepted Answer

$$V_{CSF}(t) = V_{CSF}(0) + \$$int_0$$^t (R_p - R_a) \, dt$$

Chapter 12 Objectives

Study Guide - Practice Questions

Study Guide - Flashcards