Question 1

Which of the following best describes the primary function of the nervous system?

Accepted Answer

To communicate and coordinate body functions through electrical and chemical signals

Question 2

A patient suffers a spinal cord injury that disrupts the transmission of sensory input from the legs to the brain. Which division of the nervous system is most directly affected?

Accepted Answer

Peripheral nervous system (PNS)

Question 3

Which neuroglial cell is primarily responsible for forming the myelin sheath in the central nervous system (CNS)?

Accepted Answer

Oligodendrocyte

Question 4

A neuron that has a single T-like process emerging from the cell body is classified as:

Accepted Answer

Unipolar

Question 5

Which of the following best explains why myelinated axons conduct impulses faster than nonmyelinated axons?

Accepted Answer

Myelin allows for saltatory conduction between nodes of Ranvier

Question 6

Which neuroglial cell type is most likely to increase in number in response to a bacterial infection in the CNS?

Accepted Answer

Microglial cell

Question 7

A researcher is studying the flow of cerebrospinal fluid (CSF) in the brain. Which neuroglial cell type is most directly involved in circulating CSF?

Accepted Answer

Ependymal cell

Question 8

Which of the following is a correct pairing of neuron structure and function?

Accepted Answer

Axon – conducting region

Question 9

A patient has a demyelinating disease affecting the CNS. Which of the following is most likely to be impaired?

Accepted Answer

Saltatory conduction along axons

Question 10

Which of the following best describes the role of astrocytes in the CNS?

Accepted Answer

Supporting neurons and regulating the extracellular environment

Question 11

Which of the following equations best represents the relationship between the speed of nerve impulse conduction ($$v$$), the presence of myelin ($$m$$), and axon diameter ($$d$$)? Assume $$m = 1$$ for myelinated and $$m = 0$$ for nonmyelinated axons.

Accepted Answer

$$v = k \cdot m \cdot d$$

Question 12

Which of the following is TRUE regarding the difference between nuclei and ganglia?

Accepted Answer

Nuclei are clusters of neuron cell bodies in the CNS, ganglia are in the PNS

Question 13

A person touches a hot stove and quickly withdraws their hand. Which sequence best describes the flow of information?

Accepted Answer

Sensory input → Integration → Motor output

Question 14

Which of the following best describes the function of satellite cells in the PNS?

Accepted Answer

Surrounding neuron cell bodies and regulating their environment

Question 15

Which structural class of neuron is most commonly found in the retina and olfactory mucosa?

Accepted Answer

Bipolar

Question 16

Which of the following is a characteristic of neurons that distinguishes them from most other cell types?

Accepted Answer

High metabolic rate and requirement for continuous oxygen and glucose

Question 17

Which of the following best describes the difference between white matter and gray matter in the CNS?

Accepted Answer

White matter contains myelinated fibers; gray matter contains neuron cell bodies and nonmyelinated fibers

Question 18

Which of the following best explains why neurons are considered 'amitotic'?

Accepted Answer

They do not divide after reaching maturity

Question 19

Which of the following is the correct order of events in a typical neural pathway involved in voluntary muscle movement?

Accepted Answer

Sensory input → Integration → Motor output

Question 20

Which of the following best describes the role of interneurons in the nervous system?

Accepted Answer

Shuttle signals between sensory and motor neurons within the CNS

Chapter 11: Fundamentals of the Nervous System and Nervous Tissue – Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards