CNS vs PNS Flashcards
1
Q
CNS
A
consists of BRAIN and SPINAL CORD
2
Q
nuclei
A
CNS
clusters of functionally similar/related neurons
3
Q
tracts
A
CNS
bundles of axons from neurons of nuclei
4
Q
PNS
A
consists of SOMATIC, AUTONOMIC, ENTERIC nervous systems
5
Q
ganglia
A
PNS
clusters of functionally similar/related neurons
6
Q
nerves
A
PNS
bundles of related axons
7
Q
SNS
A
external/interal lining of body wall: sensory + motor
extremities: sensory + motor
special senses: smell, taste, vision, hearing, equilibrium
- erector pili and sweat glands controlled by ANS
8
Q
ANS
A
smooth muscle, cardiac muscle, all secretory glands
- subdivisions: sympathetic + parasympathetic
9
Q
ENS
A
chains of ganglia along several layers of GI tube or alimentary canal
responsible for peristalsis and secretion of GI “juices”
commanded by CNS and ANS