Nervous systems Flashcards
What nervous system has the cell body IN the CNS
Somatic
what nervous system has lightly myelinated preganglionic axons and non myelinated postganglionic axons
Autonomic
What are the two divisions of the autonomic NS
Parasympathetic
Sympathetic
Which NS:
Craniosacral - brain stem and sacral spinal cord
Parasympathetic
Which NS:
Long PREganglionic axons
Short POSTganglionic axons
Parasympathetic
Which NS:
Ganglia in or near visceral organ effectors
Parasympathetic
Which NS:
Thoracolumbar - thoracic and lumbar spinal cord
Sympathetic
Which NS:
Short PREganglionic axons
Long POSTganglionic axons
Sympathetic
Which NS:
Ganglia close to spinal cord
Sympathetic
What innervates the blood vessels
Sympathetic fibers
Name 3 unique roles of the sympathetic division
Metabolic effects
Release of renin from kidneys
Thermoregulation
What does renin do
Increases blood pressure
What division of the NS has short lived and highly localized effects
Parasympathetic
What division of the NS has longer lasting body wide effects
Sympathetic
Why does the sympathetic NS have longer lasting effects
Norepinepherine is inactivated more slowly than ACh
