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Anatomy Physiology Semester 1 > CH 3: Nevous System > Flashcards

CH 3: Nevous System Flashcards

0
Q

Conducting cells of the nervous system, normally do not divide non-mitotic, never form tumors

A

Neurons

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1
Q

Study of nervous system

A

Neurology

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2
Q

Supporting cells nervous system, mitotic, numerous, cancerous

A

Neuroglia

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3
Q

Bundle of axons

A

Nerve

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4
Q

Tumor caused by neuroglia

A

Glioma

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5
Q

The central nervous system consists of

A

Brain and spine

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6
Q

Nervous system consists of

A

Outside of the brain and spine

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7
Q

Hierarchy of peripheral nervous system

A

P

  • afferent division
  • efferent division
    • somatic nervous system
    • autonomic nervous system
      - sympathetic division
      - parasympathetic division
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8
Q
  • sensory nerve fibers

- conducts impulses from receptor cells

A

Afferent division

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9
Q
  • Motor nerve fibers

- conducts impulses from CNS to effectors.

A

Efferent division ; somatic nervous system.

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10
Q
  • voluntary

- from Cn to skeletal muscle.

A

Somatic nervous system.

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11
Q

Involuntary

From CNS to cardiac muscles, smooth, muscle, and gland.

A

Autonomic nervous system

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12
Q

Often the accelerator

The brake

A

Autonomic nervous system./

  • sympathetic division
  • parasympathetic division
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13
Q

Carries impulse to soma

A

Dendrite

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14
Q

Carries impulse away from soma

A

Axon

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15
Q

Cell body

A

Soma

16
Q

Where axon joins a soma

A

Axon hillock

17
Q

A branch off main axon

A

Axon collateral

18
Q

Found at the end of each axon and collateral axon

A

Axon terminal

19
Q

Space between neurons

A

Synapse

20
Q

At axon terminal; stores neurotransmitter

A

Synaptic end bulb

21
Q

Cytoplasm in axon

A

Axoplasm

22
Q

Plasma membrane of axon

A

Axolemma

23
Q

Neuroglia
A.) CNS Neuroglia
1. : phagocytosis (engulf debris)
2.: secrete/circulate csf around brain.
3.: form blood brain barrier
4.: form myelin sheath on CNS axons, can’t repair itself.
B.) PNS Neuroglia
1.: surround and protect ganglia (groups of somas)
2.: form myelin sheath on PNS axons, can often repair

-_: cytoplasm of Schwann cell

A
  • microglia
  • ependymal cells
  • astrocytes
  • oligodendrocyte
  • satellite cell
  • Schwann cell
  • neurolemma

Anatomy Physiology Semester 1 (8 decks)

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