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WVSOM -- medical neuroanatomy -- autonomic nervous system

What is the target of autonomics? smooth/cardiac muscle and glands
Describe the autonomic neuron pathway. 2 neuron pathway. Neuron 1 is preganglionic with soma in CNS and Neuron 2 is post-ganglionic with soma in the autonomic ganglia
Describe the myelination of autonomic nerves preganglionics are lightly myelinated and post ganglionics are unmyelinated
What is the preganglionic neurotransmitter for sympathetic nervous system acetylcholine
What is the postganglionic neurotransmitter for the sympathetic nervous system? norepi
Where do sympathetic neurons travel? intermediate zone of grey matter in cord
What is post ganglionic neurotransmitter for parasympathetic? acetylcholine
what is pre ganglionic neurotranmistter for parasympaththetic? acetylcholine
What is the principal structure for organizing center for ANS activity? hypothalamus
How do sympathetics travel from the hypothalamus? conneccted to autonomic nuclei and gray matter by axons travellign from Medial hypothalamic nuclei thru dorsal longitudinal fasciculus
What ganglia does the occulomotor nerve travel to? ciliary ganglion
What do post-ganglionics from the ciliary ganglion effect? the eye
What ganglion does the facial nerve go to? pterygopalatine and submandibular ganglion
What does the submandimbular and pterygopalatine ganglion effect? submandibular/sublingual salivary glands and lacrimal glands
What ganglion does the glossopharyngeal nerve go to? otic ganglion
What does the otic ganglion effect? parotid salivary gland
Where does the preganglionics of the vagus synapse? walls of target organs
What does the vagus nerve effect? heart, lungs, bronchi, aorta, liver, gall bladder, stomach, small intestine, proximal portions of the large intestine
What is the sacral outflow? s2-s4 segments of the spinal cord
What does the sacral outflow effect? large intestine, urinary bladder and reporductive organs
describe the parasympathetic pathway preganglionic neurons located in cranial nerve nuclei III, VII, IX and X as well as sacral segments. they travel to the target organ where postganglics then finish the path to teh target on very short post ganglionics
Describe the path of the sympathetic nerves IML > white ramus > chain/ganglia via splanchnics > grey ramus > target organ
What are the three sympathetic ganglia in teh abdomen? celiac ganglion, superior mesenteric ganglion and inferior mesenteric ganglion
Where are sympathetihc post-ganglionic neurons located? sympathetic chain, three ganglia in abdomen and adrenal medulla
Created by: tjamrose