Question 1

Which of the following best describes the three main functions of the nervous system?

Accepted Answer

Sensory input, integration, and motor output

Question 2

A patient presents with damage to the dorsal body cavity. Which part of the nervous system is most likely affected?

Accepted Answer

Central nervous system (CNS)

Question 3

Which neuroglia cell is most abundant in the CNS and plays a role in supporting neurons, guiding migration, and controlling the chemical environment?

Accepted Answer

Astrocyte

Question 4

Which neuroglia cell is responsible for forming myelin sheaths around CNS nerve fibers?

Accepted Answer

Oligodendrocyte

Question 5

Which cell type surrounds neuron cell bodies in the PNS and functions similarly to astrocytes in the CNS?

Accepted Answer

Satellite cell

Question 6

A virus uses retrograde axonal transport to reach the neuron cell body. Which of the following diseases is most likely associated with this mechanism?

Accepted Answer

Rabies

Question 7

Which of the following is TRUE regarding myelination in the PNS?

Accepted Answer

Schwann cells wrap around axons in a jelly roll fashion

Question 8

Which structural classification of neurons is most common in the CNS?

Accepted Answer

Multipolar

Question 9

Which functional classification of neurons is responsible for transmitting impulses from sensory receptors toward the CNS?

Accepted Answer

Sensory neurons

Question 10

Which of the following best describes the function of ependymal cells?

Accepted Answer

They line the central cavities of the brain and spinal column and circulate cerebrospinal fluid (CSF)

Question 11

Which equation best represents the relationship between the number of Schwann cells ($$n) $$and the number of myelin sheath segments ($$s) in $$the PNS?

Accepted Answer

$$n = s$$

Question 12

A nerve fiber is found to be myelinated in the CNS. Which cell is most likely responsible for this?

Accepted Answer

Oligodendrocyte

Question 13

Which of the following is a major difference between white matter and gray matter in the CNS?

Accepted Answer

White matter contains dense collections of myelinated fibers, while gray matter contains mostly neuron cell bodies and nonmyelinated fibers

Question 14

Which of the following best describes the direction of anterograde axonal transport?

Accepted Answer

Away from the cell body

Question 15

Which equation best represents the relationship between the number of axon collaterals ($$c) $$and the number of axon terminals ($$t) if $$each collateral branches into $$k$$ terminals?

Accepted Answer

$$t = c 	imes k$$

Question 16

Which of the following is TRUE about interneurons?

Accepted Answer

They lie between motor and sensory neurons and are mostly found in the CNS

Question 17

Which of the following is a function of microglial cells?

Accepted Answer

Phagocytizing microorganisms and neuronal debris

Question 18

Which equation best represents the number of terminal branches ($$b) if a $$neuron has $$n$$ axon terminals and each terminal branches into $$m$$ branches?

Accepted Answer

$$b = n 	imes m$$

Question 19

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

Accepted Answer

It conducts impulses from the CNS to skeletal muscles and is under voluntary control

Question 20

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

Accepted Answer

They form myelin sheaths around peripheral nerve fibers and are vital to regeneration of damaged fibers

Fundamentals of the Nervous System and Nervous Tissue – Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards