7 (C) SNS ANS Flashcards
ANS is influenced by the hypothalamus how (position)
Rostrally
Visceral organs receive both what
CNS / PNS
PNS visceral motor division have what fibres to what structures
Efferent motor fibres to smooth muscle
ANS is only carried via …..
segments
T1 - L2
S2 - S4
What part of the spinal cord does the PNS travel down
Lateral grey horn
Preganglionic neurone is found in what?
CNS
Pastganglionic neurone + autonomic ganglion is found in what?
PNS
SNS flows from what segments
T1 - L2
What type of effect does the SNS have
Widespread
What type of outflow is the PNS
Craniosacral outflow
What CN are involved in the PNS
CN 3
CN 7
CN 9
CN 10
is the organ plexuses post / pre ganglionic
Post
What type of effect is the PNS
Localized
The pelvic splanchnic nerves are ….
segments
S2 - S4
The pelvic splanchnic nerves do what to the bladder / rectum / penis?
Open bladder
Empties rectum
Erections
SNS transmitter pre ganglionic
SNS transmitter post ganglionic
AcH
NE // epinephrine
How does the SNS affect the adrenal medulla
Preganglionic go straight to the adrenal medulla and directly release NE into BS
NO post ganglionic fibres used
the Cardiopulmonary system synapse at what ganglia
what level is this at
Paravertebral ganglia at entry
*first barrier of nuclei
the digestive system synapse at what ganglia
what level is this at
DOES NOT SYNAPSE AT SYMPATHETIC TRUNK
Goes to prevertebral ganglia for synapse // adrenal medulla
(*2nd barrier of nuclei)