Ch.4 Nervous Tissue Flashcards
1
Q
Main Components of Nervous System
A
Brain
Spinal Cord
Nerves, etc
2
Q
2 Major Cell Types
A
Neuroglia (nerve support cells that protect and insulate): no signals.
Neurons (nerve cells) : sends signals
3
Q
Functions of the cells in the nervous tissue
A
Irritability: Ability to be stimulated
Conductivity (send impulses to other areas of the body): Send signals.
4
Q
Common Structural components
A
Dendrites
Cell body
Axon
Atonal (presynaptic) terminals
5
Q
Dendrites
A
Extension to receive signals, respond to stimulus.
6
Q
Cell body
A
(Soma)
7
Q
Axon
A
Transmit electrical impulses over substantial distances within the body.
8
Q
Axonal (presynaptic) terminals
A
*
