Anat/Phys Nervous System #1 Question Preview (ID: 41923)


Anatomy And Physiology Explorations. TEACHERS: click here for quick copy question ID numbers.

The central nervous system consists of
a) only the brain.
b) the brain and spinal cord.
c) the brain and cranial nerves.
d) the brain, spinal cord, and cranial nerves.

Which of the following glia cells form myelin sheaths in the CNS?
a) astrocytes
b) microglia
c) ependymal cells
d) oligodendricytes

The functional units of the nervous system are the
a) neurons.
b) nerves.
c) Schwann cells.
d) neurotransmitters.

What transmits nerve impulses away from the nerve cell body?
a) dendrites
b) axons
c) microglia
d) satellite cells

Divisions of the peripheral nervous system are
a) sensory, somatic, autonomic, commissural
b) sensory, commissural, sympathetic, parasympathetic
c) somatic, basal nuclei, autonomic
d) sensory, somatic, autonomic

Cells that form the myelin sheaths around peripheral neurons are
a) microglia.
b) satellite cells.
c) Schwann cells.
d) astrocytes.

White matter of the central nervous system consists of
a) neuron cell bodies and unmyelinated fibers.
b) basal nuclei.
c) myelinated fibers.
d) ganglia.

Neurons that carry impulses away from the CNS are called
a) afferent neurons.
b) efferent neurons.
c) interneurons.
d) associative neurons.

All are structural classifications of neurons EXCEPT
a) multipolar.
b) unipolar.
c) bipolar.
d) tripolar.

During depolarization of a neuron
a) potassium diffuses into the cell.
b) chloride diffuses out of the cell.
c) sodium diffuses into the cell.
d) sodium diffuses out of the cell.

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