Chapter 3: Peripheral Nervous System Exam 2 Flashcards

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1
Q

What does the peripheral nervous system include?

A

Everything outside of the central nervous system like cranial and spinal nerves

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2
Q

The bundle of axons in the peripheral nervous system is called?

A

A nerve

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3
Q

The group of cell bodies in the peripheral nervous system is called?

A

A ganglion

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4
Q

What is the somatic nervous system responsible for?

A

Operates the muscles of the body and the sensory neurons that
bring information into the central nervous system.

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5
Q

What is the autonomic nervous system responsible for?

A

Regulates general body activity and internal activity like organs

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6
Q

How is the autonomic nervous system separated?

A

The parasympathetic and sympathetic nervous system

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7
Q

What is the parasympathetic nervous system responsible for?

A

Reducing arousal and helps the body restore energy (like calming us down).

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8
Q

What is the sympathetic nervous system responsible for?

A

Arousal and setting the body into fight or flight

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9
Q

What is proliferation?

A

The birth(neurogenesis) and division of neurons

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10
Q

What is migration?

A

When neurons move up radial glial cells to new locations

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11
Q

What is circuit formation?

A

When neurons send processes to target cells to form functional connections

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12
Q

What are the 2 common brain injuries?

A

Strokes (blood clots in the brain) and TBI

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13
Q

What is reorganization?

A

A shift in connections that alters the function of an area in the brain

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14
Q

What is regeneration?

A

The growth of severed axons but does not happen in mammals

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15
Q

What is neurogenesis?

A

The birth of neurons

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16
Q

Where does neurogenesis occur?

A

In the hippocampus near the lateral ventricles

17
Q

What is compensation?

A

When uninjured tissue takes on the functions of damaged/lost neurons