Question 1

Which of the following brain regions is primarily responsible for coordinating voluntary movement and maintaining posture and balance?

Accepted Answer

Cerebellum

Question 2

A patient suffers a stroke that damages the precentral gyrus of the left cerebral hemisphere. Which of the following deficits is most likely to occur?

Accepted Answer

Loss of voluntary movement on the right side of the body

Question 3

Which developmental region of the embryonic brain gives rise to the thalamus and hypothalamus in the adult brain?

Accepted Answer

Diencephalon

Question 4

Which lobe of the cerebral hemisphere is primarily responsible for processing auditory information?

Accepted Answer

Temporal lobe

Question 5

Which of the following best describes the main difference between the endocrine system and the nervous system in maintaining homeostasis?

Accepted Answer

The nervous system acts rapidly via electrical signals, while the endocrine system acts more slowly via hormones.

Question 6

Which structure is responsible for producing cerebrospinal fluid (CSF)?

Accepted Answer

Choroid plexus

Question 7

A patient with damage to Broca’s area would most likely experience which of the following symptoms?

Accepted Answer

Difficulty producing speech

Question 8

Which of the following best describes the function of the blood-brain barrier?

Accepted Answer

It restricts the passage of certain substances from the blood into the brain, protecting neural tissue.

Question 9

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

Accepted Answer

Dura mater, arachnoid mater, pia mater

Question 10

Which of the following statements about ascending and descending tracts in the spinal cord is correct?

Accepted Answer

Ascending tracts carry sensory information to the brain, while descending tracts carry motor commands from the brain.

Question 11

A lesion in the right primary somatosensory cortex would most likely result in which of the following?

Accepted Answer

Loss of sensation on the left side of the body

Question 12

Which of the following best describes the role of the limbic system?

Accepted Answer

Regulation of emotion and memory

Question 13

Which of the following is a function of the reticular formation?

Accepted Answer

Regulation of sleep-wake cycles and consciousness

Question 14

Which of the following best explains why injury to the left cerebral hemisphere may affect language abilities more than injury to the right hemisphere?

Accepted Answer

Cerebral hemispheric specialization results in language centers being primarily located in the left hemisphere.

Question 15

Which of the following best describes the pathway of cerebrospinal fluid (CSF) from its production to reabsorption?

Accepted Answer

Produced by choroid plexus → circulates through ventricles → enters subarachnoid space → reabsorbed by arachnoid villi into the bloodstream

Question 16

Which of the following is true regarding the decussation of sensory and motor pathways in the CNS?

Accepted Answer

Most sensory and motor pathways cross to the opposite side of the CNS, so damage to one side of the brain often affects the opposite side of the body.

Question 17

Which of the following best describes the role of the basal nuclei in movement?

Accepted Answer

They help initiate and regulate voluntary movements by inhibiting unnecessary movements.

Question 18

Which of the following is the correct sequence of neurons in a typical sensory pathway from the periphery to the cerebral cortex?

Accepted Answer

First-order neuron → second-order neuron → third-order neuron

Question 19

A patient is unable to form new long-term memories after a head injury. Which brain structure is most likely damaged?

Accepted Answer

Hippocampus

Question 20

Which of the following best describes the difference between the cranial and spinal meninges?

Accepted Answer

Both have three layers, but the cranial dura mater has two layers while the spinal dura mater has one.

Biol 223 Ch 12 Instructor Guide

Study Guide - Practice Questions

Study Guide - Flashcards