Question 1

Which of the following best describes the function of the basal nuclei in voluntary movement?

Accepted Answer

They inhibit involuntary movements and allow initiation of voluntary movements.

Question 2

A patient presents with an inability to recognize faces, despite being able to see and describe them. Which region of the cerebral cortex is most likely damaged?

Accepted Answer

Temporal association cortex

Question 3

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

Accepted Answer

Choroid plexuses

Question 4

During a lumbar puncture to sample CSF, the needle is inserted into which space?

Accepted Answer

Subarachnoid space

Question 5

Which of the following best explains why the brain requires a continuous supply of oxygen and glucose?

Accepted Answer

Neurons in the brain have high metabolic rates and limited energy reserves.

Question 6

Which of the following tracts carries pain and temperature sensations to the brain?

Accepted Answer

Spinothalamic tracts (anterolateral system)

Question 7

A lesion in the right parietal association cortex would most likely result in which of the following deficits?

Accepted Answer

Neglect of the left side of the body and visual field

Question 8

Which of the following best describes the pathway for voluntary movement from the brain to skeletal muscles below the head and neck?

Accepted Answer

Corticospinal tracts decussate in the medullary pyramids and synapse on lower motor neurons in the spinal cord.

Question 9

Which of the following is TRUE regarding the blood-brain barrier?

Accepted Answer

It is formed by tight junctions between endothelial cells of brain capillaries.

Question 10

Which of the following best describes the function of the reticular formation?

Accepted Answer

It regulates heart rate, ventilation, pain perception, and consciousness.

Question 11

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

Accepted Answer

Difficulty producing speech with proper grammar and syntax

Question 12

Which of the following is a function of the hypothalamus?

Accepted Answer

Integration of sensory input and maintenance of homeostasis

Question 13

Which of the following best describes the role of the cerebellum in movement?

Accepted Answer

It coordinates ongoing movement and reduces motor error.

Question 14

Which of the following is TRUE regarding the organization of gray and white matter in the brain and spinal cord?

Accepted Answer

In the spinal cord, white matter is superficial and gray matter is deep.

Question 15

Which of the following best explains the process of long-term potentiation (LTP) in the hippocampus?

Accepted Answer

LTP is required for the formation of new declarative memories.

Question 16

Which of the following equations correctly represents the relationship between cerebral blood flow ($$CBF$$), cerebral perfusion pressure ($$CPP$$), and cerebrovascular resistance ($$CVR$$)?

Accepted Answer

$$CBF = \frac{CPP}{CVR}$$

Question 17

A patient with chronic alcohol use disorder is most likely to experience deficits in which cognitive function due to decreased myelination?

Accepted Answer

Personality and behavior modulation in the prefrontal cortex

Question 18

Which of the following best describes the pathway for discriminative touch from the skin to the cerebral cortex?

Accepted Answer

Posterior columns/medial lemniscal system → thalamus → S1

Question 19

Which of the following is TRUE regarding the function of the limbic system?

Accepted Answer

It mediates memory, learning, emotion, and behavior.

Question 20

Which of the following best explains why mannitol can be used to deliver drugs to the brain?

Accepted Answer

Mannitol increases the permeability of the blood-brain barrier by disrupting tight junctions.

Chapter 12: The Central Nervous System – Structure, Function, and Integration

Study Guide - Practice Questions

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