unit 7: visceral NS, para intro Flashcards
in terms of nt, in MOST cases, parasympathetics are ___ and sympathetics are ___
cholinergic
adrenergic
the visceral ns is concerned with the __ environment of the body
internal
visceral afferent CB are located in the __ __ __ or relevant cranial nerve ganglion
posterior root ganglia
-visceral afferent:
___ processes enter cord thru post root or specific cranial nerve, while ____ processes carry impulses FROM viscera to CB via autonomic ganglia, plexus, somatic n. w/o synapse
central (axons)
peripheral (dendrites)
SYMPATHETIC afferents may travel thru symp trunk and to spinal ganglia by passing thru the _ _ _
WRC
PARA afferents travel in __ __ nerves and __ nerves
sacral spinal
cranial
visceral afferents are assoc w/ receptors sensitive to __, chemical concentrations and __ stretching
pressure
muscle
preganglionic PARA are carried in these 4 cranial nerves, along with SACRAL spinal nerves 2-4
oculomotor
facial
glossopharyngeal
vagus
preganglionic para fibers are ____ and generally synapse on postanglionic neurons in __ ganglia
cholinergic
peripheral
postganglionic para fibers extend to effector organs to __ CO, ____ bronchial tree & pupils, and ___ peristalsis
decrease
constrict
stimulate
- CN __, __ and __ will supply head structures
- CN __ supplies cardiac, respiratory and digestive structures in neck thorax and abdomen
III, VII, IX
X
sympathetically, S_-_ supply the distal parts of the digestive system and urogenital systems
S2-4