Deck 23: Organization of the Nervous System

Question 1

What are the ciliated CNS neuroglia cells that play an active role in the production of cerebrospinal fluid?

A) astrocytes
B) oligodendrocytes
C) microglia
D) ependymal cells

Answer 1

D

Question 2

The delay between when the stimulus is presented and when you respond is ________.

A) reaction time
B) learning
C) latent period
D) none of the above

Answer 2

A

Question 3

The term central nervous system refers to the ________.

A) brain, spinal cord, and peripheral nerves
B) autonomic nervous system
C) spinal cord and spinal nerves
D) brain and spinal cord

Answer 3

D

Question 4

The sheath covering Schwann cells is called the ________.

A) white matter
B) axolemma
C) myelin sheath
D) neurilemma

Question 5

Schwann cells are functionally similar to ________.

A) oligodendrocytes
B) astrocytes
C) microglia
D) ependymal cells

Question 6

Ependymal cells ________.

A) help circulate cerebrospinal fluid
B) are a type of neuron
C) myelinate the CNS axons
D) are a type of macrophage

Question 7

The chemicals that are released at the synapse from the synaptic terminal are ________.

A) cholinesterase
B) neurotransmitters
C) ions
D) none of the above

Question 8

An impulse from one nerve cell is communicated to another nerve cell via the ________.

A) cell body
B) synapse
C) receptor
D) effector

Question 9

The outer covering of connective tissue that wraps around a nerve is called ________.

A) myelin
B) epineurium
C) perineurium
D) endoneurium

Question 10

Which of the following is NOT a function of astrocytes?

A) providing structural support
B) maintaining the blood-brain barrier
C) providing the defense for the CNS
D) forming scar tissue after injury

Question 11

Which of the following choices best describes the autonomic nervous system?

A) motor fibers that conduct impulses from the CNS to skeletal muscle
B) sensory and motor neurons that supply the digestive tract
C) motor fibers which send commands to smooth muscles, cardiac muscles, and glands
D) sensory neurons that carry impulses from the body to the CNS

Question 12

Which of the following is NOT a function of the autonomic nervous system?

A) innervation of cardiac muscle
B) innervations of smooth muscle
C) innervations of glands
D) innervation of skeletal muscles