N. System & Tissue Ch. 11 Pt. 1 Flashcards
1
Q
2 Motor Divisions of PNS
A
Somatic & Autonomic
2
Q
Somatic
A
Voluntary conscious control of skeletal muscles
3
Q
Autonomic
A
Involuntary ‘autopilot’
Motor-visceral nerve fibers
Regulates smooth, cardiac muscle, glands.
& has two functional subdivisions
4
Q
Parasymphatic
A
Rest/digest
5
Q
Sympathetic
A
Fight/flight
6
Q
Histology of nervous tissue
A
Neurons & neuroglial cells
7
Q
Neurons
A
Excitable cells that transmit elecrical signals.
Multipolar, bipolar, unipolar.
8
Q
Sensory neurons:
A
bipolar- eye, brain &
unipolar- skin, cell body