Question 1

Which of the following best describes the primary function of the cerebellum?

Accepted Answer

Coordination of voluntary movements and reduction of motor error

Question 2

A patient presents with loss of coordination and difficulty with timekeeping. Which brain structure is most likely affected?

Accepted Answer

Cerebellum

Question 3

Which of the following is NOT a function of cerebrospinal fluid (CSF)?

Accepted Answer

Initiating voluntary muscle contractions

Question 4

Which layer of the cranial meninges is directly attached to the surface of the brain and enters the sulci?

Accepted Answer

Pia mater

Question 5

The blood-brain barrier is primarily formed by which of the following?

Accepted Answer

Astrocyte foot processes and tight junctions between endothelial cells

Question 6

Which of the following best explains why lipid-soluble substances can cross the blood-brain barrier more easily than water-soluble substances?

Accepted Answer

Lipid-soluble substances diffuse directly through endothelial cell membranes

Question 7

A patient has a bleed between the dura mater and the skull. This is known as:

Accepted Answer

Epidural hematoma

Question 8

Which of the following structures is responsible for relaying and processing most sensory information before it reaches the cerebral cortex?

Accepted Answer

Thalamus

Question 9

Damage to the prefrontal cortex would most likely result in which of the following symptoms?

Accepted Answer

Impaired judgment and personality changes

Question 10

Which of the following best describes the flow of cerebrospinal fluid (CSF) in the central nervous system?

Accepted Answer

Produced by ependymal cells in the ventricles, flows through ventricles, exits via apertures, bathes brain and spinal cord, reabsorbed by arachnoid granulations

Question 11

Which of the following is a function of the hypothalamus?

Accepted Answer

Control of hormone production in the pituitary gland

Question 12

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

Accepted Answer

Facilitation of memory storage, retrieval, and emotional states

Question 13

Which of the following white matter tracts connects the two cerebral hemispheres?

Accepted Answer

Commissural fibers

Question 14

A patient is unable to initiate voluntary movements on the right side of the body. Which area of the brain is most likely damaged?

Accepted Answer

Left primary motor cortex

Question 15

Which of the following is TRUE regarding the spinal cord?

Accepted Answer

The anterior horn controls somatic motor functions

Question 16

Which of the following best describes the function of the medulla oblongata?

Accepted Answer

Regulation of autonomic functions such as heart rate and digestion

Question 17

Which of the following is a correct statement about the blood supply to the brain?

Accepted Answer

The brain receives blood from the internal carotid and vertebral arteries

Question 18

Which of the following is a function of the basal nuclei?

Accepted Answer

Regulation of voluntary motor output and inhibition of unwanted movements

Question 19

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

Accepted Answer

The cranial dura mater has two layers, while the spinal dura mater has only one

Question 20

Which of the following best explains why a blockage of the cerebral aqueduct can lead to hydrocephalus?

Accepted Answer

CSF cannot flow from the third to the fourth ventricle, causing accumulation in the lateral and third ventricles

The Central Nervous System: Structure and Function

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