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GI (gastrointestinal) (nervous supply (autonomic (sympathetic…
GI (gastrointestinal)
nervous supply
enteric
wall of GI tract
sensory nerve plexus
content of lumen and wall stretch
motor nerve plexus
smooth muscle cells and epithelial cells
smooth muscle or glands
short reflex arcs
Acetylcholine
independent from rest of body
autonomic
sympathetic
adrenergic - noradrenaline
cholinergic - acetyl choline
postganglionic
head
vertebral nerve
heart, lungs
abdominal viscera
caudal mesenteric ganglion
hypogastric nerve
pelvic viscera
preganglionic
T1-L2
stellate ganglion
middle cervical ganglion
splanchnic nerves
lesser, greater, lumbar
parasympathetic
promotes digestion
cholinergic - acetyl choline
preganglionic
long reflex arcs
connection to CNS (central nervous system)
sight, smell, taste
salivary glands, pancreas and liver
entero enteric reflexes
peripheral nervous system
T13, L1-L3
hormonal regulation