16 - Enteric Flashcards
loction of enteric ns?
walls of GI tract
what are the plexuses and parts of the GI where they are found?
submucosal P
- stomach and intest
myenteric
- entire GI
structure of GI and location of plexuses?
long muscle myenteric p circ muscle sub plex submucosa mucosa
why can neurones in enteric form short reflexes?
afferent - interneurone - motor
what can be used to describe motor efferents in enteric?
secretomotors
sensory receptors found in the enteric?
chemo and mechano
interneuorones NT in enteric?
excitatory and inhib
secretomotor efferents NT in enteric? [that supply muscle]
usually motors are all excitatory
but in enteric, secretomotors can be exicitatory and inhib
- supply smooth muscle
exps of inhibitory nt?
NO
ATP
exps of excitatory nt?
Substane P
ACh
5-ht
secretomotor efferents NT in enteric? [that supply secreting cells]
these secretomotor efferents are always EXCITATORY
roles of enteric?
motility
secretion
blood flow
exp of motor reflex in enteric?
peristalsis
