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76 Cards in this Set
- Front
- Back
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Where are preganglionic sympathetic neurons located?
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Lateral horn of T1-L2
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WHat are the 4 splanchnic nerves that supply abdominal viscera?
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Greater splanchnic nerve, lesser splanchnic nerve, least splanchnic nerve, lumbar splanchnic nerves.
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What are the 4 prevertebral ganglia of the abdominal viscera?
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Celiac, superior mesenteric, aorticorenal, inferior mesenteric
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What nerves provide parasympathetic innervation to the abdominal viscera? (2) What ganglia do they use?
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Vagus nerve and pelvis splanchnic nerves. They use terminal ganglia.
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What do parasympathetic vagus nerve distribute to?
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Foregut and midgut.
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What do parasymphathetic pelvic splanchnic nerves supply
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Hind gut.
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Where are terminal ganglia located?
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In auerbach's plexus in the gut wall.
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What are the 4 things that are a part of hte aortic plexus?
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Superior hypogastric plexus, hypogastric nerves (right and left), inferior hypogastric plexus, and sacral splanchnic nerves.
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What is the superior hypogastric plexus?
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The continuation of the aortic plexus onto sacral promontory.
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What are the hypogastric nerves? How many are there? Where do they come from/go?
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Right and left, leave the superior hypogastric plexus and enter the pelvis on the way to the inferior hypogastric plexus.
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What type of fibers are contained in the inferior hypogastric plexus?
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Both sympathetic and parasympathetic.
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Where does the inferior hypogastric plexus course along?
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Branches of the internal iliac arteries.
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What type of nerves are sacral splanchnic nerves? Where do they arise from/ are they going?
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Postganglionic sympathetic fibers that arise from the sacral sympathetic chain to enter the inferior hypogastric plexus.
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Where do sympathetic preganglionic nerves arise from?
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Lateral horn T1-L2
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Where do parasympathetic preganglionic nerves arise from?
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CN 3,7,9,10 (Vagus)
And lateral horn of S2-S4 |
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Which ganglia make up the sympathetic trunk?
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Paravertebral ganglia.
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How many paravertebral ganglia are there?
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22 pairs
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How are prevertebral (paired) ganglia named?
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Names of major branches of abdominal aorta.
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Describe what postganglionic parasympathetic ganglia use.
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CN 3,7,9 = Named ganglia
CN 10, S2-S4 (preganglionics) all use Terminal ganglia |
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When does something become a splanchnic nerve?
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After it leaves paravetebral ganglia.
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Are grey rami used for abdominal or pelvic viscera?
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NO only used for post ganglionic into spinal nerves.
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How many white rami are there?
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14 pairs of white rami
T1-T12 = 12 L1-L2=2 14 total |
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Which preganglionic sympathetic neuronal cell body levels supply the foregut and celiac axis?
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T5-T9
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What is the name of the preganglionic sympathetic fibers (axon) that supply the foregut-celiac axis?
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Greater splanchnic nerve
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What is the prevertebral sympathetic ganglion of the foregut-celiac axis?
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Celiac ganglia.
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What are postganglionic sympathetic fibers of the foregut celiac axis located in? What do they run with?
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Run in celiac plexus. Are encased by branches of the celiac trunk (artery)
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What are the preganglionic sympathetic neuronal cell body levels that supply the midgut-superior mesenteric axis?
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T10-T11
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What is the name of the preganglionic sympathetic fibers (axon) that supply the midgut-superior mesenteric axis?
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Lesser splanchnic
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What is the name of the prevertebral sympathetic ganglion of the midgut-superior mesenteric axis?
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Superior mesenteric
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What is the name of the course of the postganglionic sympathetic fibers that supply the midgut-superior mesenteric axis?
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Follow along branches of superior mesenteric artery.
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Which preganglionic sympathetic neuronal cell body levels do the hindgut-inferior mesenteric axis use?
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L1-L2
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Which preganglionic sympathetic fibers (axon) does the hindgut-inferior mesenteric axis use?
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Lumbar splanchnic nerves.
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Which prevertebral sympathetic ganglion do hindgut-inferior mesenteric axis use?
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Inferior mesenteric
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What course do sympathetic postganglionic fibers of the hindgut-inferior mesenteric axis use?
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Follows branches of inferior mesenteric artery.
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Which preganglionic sympathetic neuronal cell body levels do the kidneys, gonads use?
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T12
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Which preganglionic sympathetic fibers (axon) does the hindgut-inferior mesenteric axis use?
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Least splanchnic nerve
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Which prevertebral sympathetic ganglion do kidneys, gonads use?
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Aortico-renal
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What course do sympathetic postganglionic fibers of the kidneys, gonads use?
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Renal artery and gonadal artery.
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Which preganglionic sympathetic neuronal cell body levels do the supraarenal glands use?
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T8-T12
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Which preganglionic sympathetic fibers (axon) does the suprarenal glands use?
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Greater, Lesser and least splanchnic nerves
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Which prevertebral sympathetic ganglion do the suprarenal glands use?
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DO NOT USE!
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What course do sympathetic postganglionic fibers of the suprarenal glands use?
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End in the medulla of the suprarenal gland.
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What are the preganglionic parasympathetic neuronal cell bodies that supply the foregut-celiac axis?
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Brainstem, CN nuclei.
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What preganglionic parasympathetic fibers supply the foregut-celiac axis?
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Vagus.
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What ganglion are used by the foregut-celiac axis for parasympathetics?
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Terminal
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What postganglionic parasympathetic fibers do the foregut-celiac axis use?
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Only in the wall of the organ
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Where are the preganglionic parasympathetic neuronal cell bodies that supply the midgut- superior mesenteric axis located?
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Brainstem, CN X
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What preganglionic parasympathetic fibers (axon) supply the midgut-superior mesenteric axis?
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Vagus
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Which parasympathetic ganglion are used by midgut-superior mesenteric axis?
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Terminal
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Where do postganglionic parasympathic fibers supplying the midgut-superior mesenteric axis go?
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Only in the wall of the organ
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Where are the parasympathetic neuronal cell bodies that supply the midgut- superior mesenteric axis located?
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S2-S4 lateral horns
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What preganglionic parasympathetic fibers (axon) supply the midgut-superior mesenteric axis?
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Pelvic splanchnic nerves
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Which parasympathetic ganglion are used by midgut-superior mesenteric axis?
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Terminal
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Where do postganglionic parasympathic fibers supplying the midgut-superior mesenteric axis go?
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Only in the wall of the organ.
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Where are the parasympathetic neuronal cell bodies that supply the kidneys, gonads located?
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Brainstem CNX
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What preganglionic parasympathetic fibers (axon) supply the kidneys, gonads?
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Vagus
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Which parasympathetic ganglion are used by the kidneys, gonads?
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Terminal
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Where do postganglionic parasympathic fibers supplying the kidneys, gonads?
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Only in the wall of the organ.
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Do the suprarenal glands have any parasympathetic innervation?
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NO
NO preganglionic cell bodies NO preganglionic fibers NO Ganglia NO Postganglionic fibers |
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What does the sympathetic trunk end as?
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The ganglion impar
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What nerves do the L1-L2 lateral horn nerves use?
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Lumbar splanchnics
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Where do lumbar splanchnic distribute?
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Along the abdominal aorta as aortic plexus
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Do lumbar splanchnics synapse in inferior mesenteric ganglia?
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NO
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After joining the aortic plexus where do nerves go?
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On to the sacral promontory as the superior hypogastric plexus.
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What type of nerves are found in the superior hypogastric plexus?
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Preganglionic sympathetic fibers.
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Which 2 nerves are formed from the postganglionic fibers arising from the superior hypogastric plexus?
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The right and left hypogastric nerves.
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Where do the hypogastric nerves go? What course do they take?
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THey travel over the pelvic brim, they distribute themselves into inferior hypogastric plexus (along branches of the internal iliac) They then follow to the superior surface of the bladder and sends fibers along specific branches to organs.
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What organs are supplied by lateral horn L1-L2? (5)
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Urinary bladder, Rectum, Uterus- fundus, Vagina, Seminal vesicle
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What are the 2 choices lateral horn preganglionic sympathatic cell bodies have?
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Lumbar splanchnic nerves to superior hypogastric plexus or can descend in the sympathetic chain to the sacral region.
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What ganglion do lumbar splanchnic nerves in the superior hypogastric plexus use?
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Small ganglia in superior hypogastric plexus.
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What are the post ganglionic nerves of the lumbar splanchnic nerves coming out of the hypogastric plexus?
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Hypogstric nerve to inferior hypogastric plexus to visceral plexus (along BV to the organ)
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What ganglion do sympathetic nerves in the sacral sympathetic chain use?
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Synapse in paravertebral ganglia in the sacral region.
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What postganglionic sympathetic fibers do preganglionic sympathetic chain fibers that have gone through paravertebral ganglia use?
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Use sympathetic sacral splanchnic to enter the inferio hypogastric plexus and follow BV to the organ
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What choices do the preganglionic parasympathetic neuronal cell bodies in the lateral horn of S2-S4 have?
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Only to become pelvic splanchnic nerves to the inferior hypogastric plexus distributed to organs via individual plexuses.
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What ganglion do parasympathetic fibers from lateral horn S2-S4 use?
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Terminal ganglia
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Where are postganglionic parasympathetic fibers from lateral horn S2-S4?
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Distributed in the wall of organs
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