Question 1

Which of the following best describes the main function of the central nervous system (CNS)?

Accepted Answer

It controls consciousness and integrates sensory and motor information.

Question 2

Which structure is responsible for insulating axons and speeding up electrical impulses in the nervous system?

Accepted Answer

Myelin sheath

Question 3

A patient is unable to feel pain in their hand after a spinal cord injury. Which part of the nervous system is most likely affected?

Accepted Answer

Central nervous system (CNS)

Question 4

Which of the following is a function of the peripheral nervous system (PNS)?

Accepted Answer

Connecting the CNS to limbs and organs

Question 5

Which cell type provides support and protection to neurons in the nervous system?

Accepted Answer

Neuroglia

Question 6

Which of the following best describes the function of dendrites?

Accepted Answer

They conduct electrical signals toward the cell body.

Question 7

A person is able to decode what a blurry letter says but cannot move their hand to write it down. Which part of the nervous system is functioning and which is impaired?

Accepted Answer

CNS is functioning; PNS is impaired.

Question 8

Which of the following statements about the myelin sheath is correct?

Accepted Answer

It is a fatty layer that insulates the axon.

Question 9

Which of the following is NOT a function of neuroglia?

Accepted Answer

Transmitting electrical impulses

Question 10

Which of the following scenarios best illustrates the function of the CNS?

Accepted Answer

Feeling worry after an argument with a coworker.

Question 11

Which of the following statements about the nervous system is correct?

Accepted Answer

The CNS is made up of the brain and spinal cord.

Question 12

Which part of a neuron is responsible for transmitting electrical impulses away from the cell body?

Accepted Answer

Axon

Question 13

Which of the following best describes the relationship between the CNS and PNS?

Accepted Answer

The CNS processes information, while the PNS transmits signals to and from the CNS.

Question 14

Which of the following is an example of a function that involves both the CNS and PNS?

Accepted Answer

Moving your hand away from a hot object

Question 15

Which of the following is a correct statement about neurons?

Accepted Answer

They are the structural and functional units of the nervous system.

Overview of the Nervous System

Study Guide - Practice Questions

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