Lecture 11- Autonomic nervous system Flashcards
What CN make up the parasympathetic nervous system?
III, VII, IX, X
What are the targets of the autonomic nervous system?
Smooth muscle
Cardiac muscle
Glands
What are small branches that come off the spinal nerves?
Rami communicans
How many rami communicans are there?
13 thoracic pair
5 lumbar pairs
When does a neuron become postganglionic?
When there are no other ganglia to reach
Loop in the sympathetic trunk
Ansa
Nerves that leave the sympathetic trunk in the thoracic region
Thoracic spanchnic (post synaptic)
Nerve that feeds into the celiac ganglion
Major splanchnic
3 celiacomesenteric ganglia
Celiac ganglion
Cranial mesenteric ganglion
Caudal mesenteric gangllion
(follow vessels to the hepatic portal system?)
Neuron that feeds into the cranial mesenteric ganglion
Minor splechnic
Neuron that feeds into the caudal mesenteric ganglion
Lumbar splanchnic