Nervous System Vocab Flashcards Preview

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Flashcards in Nervous System Vocab Deck (22)
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1
Q

Ependymal

A

Line brain cavities, aid in CSF circulation

2
Q

Microglia

A

CNS protection, remove dead tissue

3
Q

Oligodendrocyte

A

CNS, makes myelin

4
Q

Schwann Cell

A

Makes myelin in PNS

5
Q

Astrocyte

A

Found in brain and cord, glue, support cells

6
Q

Bipolar neuron

A

Transmits impulses to the brain or spinal cord

7
Q

Unipolar neuron

A

Transmits impulses to the body from the brain and spinal cord

8
Q

Multipolar neuron

A

Conducts impulses from sensory to motor neurons

9
Q

Myelin sheath

A

Segmented wrapping around nerve fiber, insulation

10
Q

Neurilemma

A

Continuous sheath enclosing myelin sheath of peripheral nerve fibers

11
Q

Nerve

A

Bundle of myelinated fibers outside brain and spinal cord

12
Q

Tracy

A

Bundle of myelinated fibers in brain and spinal cord

13
Q

Gray matter

A

Cluster of cells, gray in color

14
Q

White matter

A

Myelin (fat) insulation

15
Q

Nodes of Ranvier

A

Gaps in myelin sheath

16
Q

CNS

A

Central nervous system, brain & spinal cord

17
Q

Reflex arc

A

the nerve pathway involved in a reflex action including at its simplest a sensory nerve and a motor nerve with a synapse between.

18
Q

Saltitory conduction

A

How it jumps down the axon

19
Q

Stimulus

A

What creates an impulse

20
Q

Synapse

A

Where they make the jump from one end to another

21
Q

Synaptic knob

A

At the end of the axon; has vesicles

22
Q

Synaptic vessels

A

Inside the knob; has neurotransmitter substances

“Bouton Terminale”