Cells Of The Nervous System Flashcards
1
Q
Neuron cell body
A
(Perikaryon/Soma) contains the nucleus
2
Q
Dendrites
A
The receiving portion of neurons
3
Q
Axon
A
Propagates nerve impulses toward another neuron
4
Q
Schwann cells
A
Encircle PNS axons
5
Q
Neurofibrils
A
Composed of bundles of intermediate filaments that provide the cell shape and support
6
Q
Neurolemma
A
The outer uncleared cytoplasm layer of the Schwann cell, enclosed the myelin sheath
7
Q
Nodes of Ranvier
A
Gaps in the myelin sheath
8
Q
Axon hillock
A
Where the axon joins the cell body
9
Q
Axoplasm
A
The cytoplasm of a nerve axon
10
Q
Axolemma
A
The cell membrane surrounding an axon. Maintains the membrane potential of the neuron.
11
Q
Axon Collateral
A
A branch off of the main axon that feeds back into the soma
12
Q
Neuron
A
Possesses electrical excitability, the ability to respond to a stimulus (nerve cell)
