Question 1

Which of the following best describes the function of the autonomic nervous system (ANS)?

Accepted Answer

It exerts involuntary control over vital body functions such as heart rate, digestion, and body temperature.

Question 2

A patient suffers a spinal cord injury that disrupts the transmission of impulses from the brain to the lower limbs. Which type of neuron is most directly affected?

Accepted Answer

Motor (efferent) neuron

Question 3

Which structure is responsible for interconnecting different regions within the central nervous system (CNS) and conveying impulses between them?

Accepted Answer

Bundle of nerve fibers within the CNS

Question 4

A patient presents with abnormal heart rate and blood pressure regulation following a traumatic brain injury. Which division of the nervous system is most likely impaired?

Accepted Answer

Autonomic nervous system (ANS)

Question 5

Which of the following correctly matches a brain region with its embryological origin?

Accepted Answer

Thalamus — Diencephalon

Question 6

A reflex arc involves a rapid, involuntary response to a stimulus. Which structure acts as the primary reflex center in this process?

Accepted Answer

Spinal cord

Question 7

Which of the following best describes a nerve plexus?

Accepted Answer

A network of nerves within the PNS that provides overlapping innervation to certain body regions

Question 8

If a disease selectively destroys the gray matter of the brain, which of the following functions would be most directly affected?

Accepted Answer

Processing and integration of information

Question 9

Which of the following is TRUE regarding the organization of the nervous system?

Accepted Answer

The autonomic nervous system is a division of both the CNS and PNS.

Question 10

A patient is unable to feel pain in their right hand after a nerve injury. Which pathway has most likely been disrupted?

Accepted Answer

Sensory (afferent) pathway

Question 11

Which of the following best describes the function of a ganglion in the peripheral nervous system?

Accepted Answer

It serves as a control center for a bundle of neurons.

Question 12

A patient with damage to the myelencephalon would most likely experience problems with which of the following?

Accepted Answer

Autonomic functions such as breathing and heart rate

Question 13

Which of the following is the correct sequence of divisions from the largest to the smallest in the embryological development of the brain?

Accepted Answer

Prosencephalon → Telencephalon → Cerebrum

Question 14

A patient is experiencing both increased heart rate and decreased digestive activity during a stressful event. Which division of the autonomic nervous system is primarily responsible for these changes?

Accepted Answer

Sympathetic division

Question 15

Which of the following statements about the spinal cord is correct?

Accepted Answer

It conveys messages to and from the brain and acts as a reflex center.

Question 16

A patient with a lesion in the diencephalon would most likely have deficits in which of the following functions?

Accepted Answer

Regulation of hormones and sensory relay

Question 17

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

Accepted Answer

It is involved in coordination and fine-tuning of voluntary movements.

Question 18

A patient is diagnosed with a disorder affecting the nerve plexuses of the PNS. Which of the following symptoms would most likely be observed?

Accepted Answer

Loss of overlapping innervation to certain body regions

Question 19

Which of the following is a correct statement about the relationship between the CNS and PNS?

Accepted Answer

The CNS is responsible for transmitting impulses to and from the PNS.

Question 20

A patient with a tumor in the telencephalon would most likely experience which of the following symptoms?

Accepted Answer

Deficits in higher cognitive functions such as reasoning and memory

Divisions and Structures of the Nervous System

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