Question 1

Which of the following best describes the primary function of the Central Nervous System (CNS)?

Accepted Answer

It integrates sensory information and determines appropriate responses.

Question 2

A patient presents with paralysis after a viral infection. The virus is known to travel from the site of infection to the spinal cord by moving toward the cell body of neurons. Which type of axonal transport is most likely involved?

Accepted Answer

Retrograde axonal transport

Question 3

Which of the following is a correct pairing of a structural and functional classification of neurons?

Accepted Answer

Pseudounipolar neurons – Sensory (afferent) neurons

Question 4

Which neuroglial cell is primarily responsible for forming the blood-brain barrier?

Accepted Answer

Astrocyte

Question 5

A patient with a brain tumor is diagnosed with an astrocytoma. Which of the following statements about astrocytomas is correct?

Accepted Answer

They are a type of glioma and can range from mild to highly aggressive.

Question 6

Which of the following best describes the role of the somatic motor division of the peripheral nervous system?

Accepted Answer

It transmits signals to skeletal muscles for voluntary movement.

Question 7

Which of the following is NOT a function of astrocytes?

Accepted Answer

Forming myelin sheaths around axons in the CNS

Question 8

Which of the following best describes the difference between nuclei and ganglia?

Accepted Answer

Nuclei are clusters of cell bodies in the CNS; ganglia are clusters of cell bodies in the PNS.

Question 9

Which of the following statements about neurons is TRUE?

Accepted Answer

Neurons are excitable cells that send and receive signals in the form of action potentials.

Question 10

A patient is unable to feel pain or pressure in their limbs. Which type of neuron is most likely affected?

Accepted Answer

Pseudounipolar sensory neuron

Question 11

Which of the following best describes the function of the integrative division of the nervous system?

Accepted Answer

It analyzes and interprets sensory stimuli to determine an appropriate response.

Question 12

Which of the following is a characteristic of the axon but NOT the dendrite?

Accepted Answer

Can generate and conduct action potentials

Question 13

Which of the following best explains why the CNS disregards about 99% of sensory input?

Accepted Answer

Most sensory input is not important for survival or immediate response.

Question 14

Which of the following is TRUE regarding axonal transport?

Accepted Answer

Fast axonal transport uses ATP and motor proteins to move substances.

Question 15

Which of the following is a real-world example of a disease that uses retrograde axonal transport to invade the nervous system?

Accepted Answer

Poliomyelitis

Question 16

Which of the following best describes the role of neuroglial cells in the nervous system?

Accepted Answer

They support, protect, and assist neurons in their functions.

Question 17

Which of the following is a correct description of the functional regions of a neuron?

Accepted Answer

The conducting region is the axon, which carries signals away from the cell body.

Question 18

Which of the following best explains why neuroglial cells can form tumors more readily than neurons?

Accepted Answer

Neuroglial cells can undergo mitosis, while neurons are generally amitotic.

Introduction to the Nervous System and Nervous Tissue – Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards