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Stack #107642

3 basic neuroeffector tissues innervated by GVE neurons smooth m, cardiac m, glands
divisions of ANS sympathetic and parasympathetic
ganglion aggregation or group of cell bodies outside CNS
where are preganglionic neuron cel bodies on ANS preganglionic neuron cell bodies found in CNS
where are efferent neuron cell bodies of somatic divi of PNS anterior horn of spinal cord
where are postganglionic neuron cell bodies of ANS in autonomic ganglia; will exit ganglia to synapse with one of neuroeffector tissues
primary fxn of ANS maintains homeostasis, cntrls fxn of visceral organs an dskin; autonomic tone and vasomotor tone symapthetic NS
paravertebral ganglion lateral to vertebral column
prevertbral ganglion anterior to vertebral column
parasympathetic NS forms terminal ganglion-located close to or in wall of organ innervated
splanchnic nn neurons that pass thru sympathetic trunk of ganglia with synapsing
sympathetic preganglionic neuron cell bodies are found in lateral horn of spinal cord and exit the bertebrae from T1-L2
symp GVE neurons emerge from where spinal cord in anterior roots of spinal nerves from spinal segs T1 to L2
symp preganglionic neuron fibers exit spinal nerve via white rami to enter symp chain ganglia
once sympathetic GVE neuron exits spinal n & enters paravertebral ganglia, 4 things pass directly into symp chain gang & synapse w/ a postgang neuron; pass directly into symp chain gang & ascend or descend chain; pass thru symp chain gang into thoracic portion of symp trunk w/out synapsing; pass thru to adrenal medulla w/out synapsing
symp neurons which exit parabertebral gang to rejoin spinal do so via what structure grey ramus
spinal nerves have white rami communications assoc w/ them spinal n T1-L2
spinal n have grey rami communications spinal n C1-coccyx
neurotransmitter released from pregang sympathetic neurons acetylcholine (chonline and acetyl coA)
what enzyme inactivates neurotransmitter released from pregang symp neurons acetylcholinesterase
neurotransmitter released from the majority of postgang symp neurons catecholamines-norepinephrine
Created by: nnira