Chpt. 25 Vocab Flashcards
0
Q
Peripheral nervous system
A
All parts of the nervous system except for the brain and spinal cord
1
Q
Central nervous system
A
The brain and the spinal cord
2
Q
Neuron
A
A nerve cell that is specialized to receive and conduct electrical impulses
3
Q
Nerve
A
A collection of nerve fibers
4
Q
Brain
A
The mass nerve tissue
5
Q
Integumentary system
A
The organ system that forms a protective cover
6
Q
Reflex
A
An involuntary movement
7
Q
Feedback mechanism
A
A cycle of events in which info from one step controls or affects a previous step
8
Q
Retina
A
The light-sensitive inner layer of the eye
9
Q
Cochlea
A
A coiled tube that is found in the inner ear and is essential to hearing
