Prince George Community College » Biology » Bio 2050 - Anatomy and Physiology » Spring 2021

Question #1

Axons terminate by branching to form small extensions with enlarged ends which are called this:

A. axon hillocks

B. presynaptic terminals

C. neuron cell bodies

D. postsynaptic membranes

Question #2

This extensive network of axon outside of the CNS:

A. plexus

B. spinal cord

C. sensory receptor

D. ganglion

Question #3

These cell types produce and help circulate cerebrospinal fluid:

A. microglia

B. astrocytes

C. Schwann cells

D. ependymal cells

Question #4

These statements about unipolar neurons are all true except:

A. most are sensory neurons

B. have a single process extending from the cell body

C. have no dendrites

D. located in the eye and nasal cavity

Question #5

This statement best describes the myelin sheath:

A. covering surrounding an axon

B. helps conduct the action potential more rapidly

C. provides insulation from other axons, covering surrounding an axon and made of Schwann cells(neurolemmocytes)

D. provides insulation from other axons

E. made of Schwann cells(neurolemmocytes)

Question #6

This portion of the motor division of the nervous system conducts action potentials from the central nervous system to skeletal muscle fibers.

A. autonomic

B. sympathetic

C. somatic

D. afferent