Hs: Week 4- Autonomics Of The Abdomen And Pelvis

Front 1

Location of greater thoracic splanchnic preganglionic cell bodies?

Back 1

Location of greater throacic splanchnic preganglionic cell bodies is T5-T9

Front 2

Location of lesser thoracic splanchnic preganglionic cell bodies?

Back 2

Location of lesser throacic splanchnic preganglionic cell bodies is T10-T11

Front 3

Location of least thoracic splanchnic preganglionic cell bodies?

Back 3

Location of least thoracic splanchnic preganglionic cell bodies is T12

Front 4

Location of lumbar splanchnic preganglionic cell bodies?

Back 4

Location of lumbar splanchnic preganglionic cell bodies is L1-L2

Front 5

What gland is innervated by greater, lesser, and least splanchnic nerves?

Back 5

Suprarenal gland (medulla) is innervated by greater, lesser, and least splanchnic nerves

Front 6

Where do preganglionic greater thoracic splanchnic fibers synapse?

Back 6

Preganglionic greater thoracic splanchnic fibers synapse on celiac ganglion

Front 7

Where do preganglionic lesser thoracic splanchnic fibers synapse?

Back 7

Preganglionic lesser thoracic splanchnic fibers synapse on superior mesenteric ganglion

Front 8

Where do the preganglionic least thoracic splanchnic fibers synapse?

Back 8

Preganglionic least thoracic splanchnic fibers synapse on minute ganglia of the renal plexus (aorticorenal ganglia) and adrenal medulla

Front 9

Where do preganglionic lumbar splanchnic fibers synapse?

Back 9

Preganglionic lumbar splanchnic fibers synapse on inferior mesenteric ganglion

Front 10

What do postganglionic fibers of greater thoracic splanchnic supply?

Back 10

Postganglionic fibers of greater thoracic splanchnic supply vascular smooth muscles of the vessels and viscera that the celiac trunk supplies (i.e. foregut)

Front 11

What do postganglionic fibers of lesser thoracic splanchnic supply?

Back 11

Postganglionic fibers of lesser thoracic splanchnic supply the vascular smooth muscle of the vessels supplied by the superior mesenteric artery (i.e. superior mesenteric plexus to the midgut)

Front 12

What do postganglionic fibers of least thoracic splanchnic supply?

Back 12

Postganglionic fibers of least thoracic splanchnic supply the aorticorenal ganglia and adrenal medulla, kidneys, gonads

Front 13

What do postganglionic fibers of lumbar splanchnic supply?

Back 13

Postganglionic fibers of lumbar splanchnic form the intermesenteric plexus to supply the hindgut

Front 14

What do sacral splanchnics supply?

Back 14

Sacral splanchnics supply the hindgut

Front 15

With what structure does the greater thoracic postganglionic fibers travel?

Back 15

Greater thoracic postganglionic fibers travel with the celiac trunk (as perivascular plexus)

Front 16

With what structure does the lesser thoracic postganglionic fibers travel?

Back 16

Lesser thoracic postganglionic fibers travel with the superior mesenteric artery

Front 17

With what structure does the least thoracic postganglionic fibers travel?

Back 17

Least thoracic postganglionic fibers travel with the renal artery

Front 18

With what structure does the lumbar splanchnic postganglionic fibers travel?

Back 18

Lumbar splanchnic postganglionic fibers travel with the inferior mesenteric artery

Front 19

Anterior vagal trunk is a continuation of what?

Back 19

Anterior vagal trunk is a continuation of the left vagus nerve

Front 20

Posterior vagal trunk is a continuation of what?

Back 20

Posterior vagal trunk is a continuation of the right vagus nerve

Front 21

Where does the preganglionic vagus fibers synapse?

Back 21

Preganglionic vagus fibers synapse within the wall of the organ

Front 22

How does the synapse of preganglionic parasympathetic fibers (vagus, pelvic splanchnic) differ from preganglionic sympathetic fibers?

Back 22

Preganglionic fibers synapse within the wall of the organ (no postganglionic distribution of fibers, already in the target organ), unlike sympathetic fibers which have to distribute postganglionic fibers

Front 23

What does the vagus supply in the abdomen?

Back 23

The vagus supplies the foregut, midgut, and part of the hindgut

Front 24

Where are the preganglionic cell bodies of pelvic splanchnic nerves?

Back 24

Preganglionic cell bodies of pelvic splanchnic nerves are located at S2-S4

Front 25

Where do pelvic splanchnic nerves distribute their preganglionic fibers?

Back 25

Preganglionic pelvic splanchnic fibers travel to the rectum, sigmoid colon, descending colon, and distal 1/3 of the transverse colon (hindgut)

Front 26

Where do preganglionic pelvic splanchnic nerves synapse?

Back 26

Preganglionic pelvic splanchnic nerves synapse in ganglia in the wall of the gut or in the pelvic viscera (*parasympathetic* synapse on or near the organ)

Front 27

What comprises the parasympathetic portion of the celiac plexus?

Back 27

Posterior vagal trunk comprises the parasympathetic portion of the celiac plexus (*but do not synapse, just passing thru)

Front 28

What comprises the sympathetic portion of the celiac plexus?

Back 28

The greater and lesser splanchnic nerves comprise the sympathetic portion of the celiac plexus (*these do synapse here)

Front 29

Where is the intermesenteric plexus located?

Back 29

The intermesenteric plexus is between the superior and inferior mesenteric arteries

Front 30

What does the intermesenteric plexus give rise to?

Back 30

The intermesenteric plexus gives rise to renal, testicular/ovarian, and ureteric plexuses

Front 31

What is continuous with the intermesenteric and inferior mesenteric plexus?

Back 31

The superior hypogastric plexus is continuous with the intermesenteric and inferior mesenteric plexus; it lies anterior to the inferior portion of the aorta near its bifurcation

Front 32

What joins the superior hypogastric plexus and by what means?

Back 32

The inferior hypogastric plexus joins the superior hypogastric plexus by the right and left hypogastric nerves

Front 33

What is distributed with the arterial supply?

Back 33

The perivascular plexuses are distributed with the arterial supply (celiac trunk, superior mesenteric artery, renal artery, and inferior mesenteric artery)

Front 34

What gives rise to the lumbar splanchnic nerves?

Back 34

The abdominal part of the sympathetic trunk gives rise to the lumbar splanchnic nerves

Front 35

How many lumbar sympathetic ganglia are there coming off the abdominal sympathetic trunk?

Back 35

The abdominal sympathetic trunks are composed of 4 lumbar sympathetic ganglia that are connected to each other

Front 36

What do the abdominal sympathetic trunks receive and then send?

Back 36

Abdominal sympathetic trunks receive white rami communicans from ventral primary rami L1-L2 and send grey rami communicans back to these levels

Front 37

Where do lumbar splanchnic nerves travel?

Back 37

Lumbar splanchnic nerves pass to the intermesenteric, inferior mesenteric, and superior hypogastric plexuses

Front 38

By what general path do parasympathetics travel in the abdomen to get to the hindgut?

Back 38

Parasympathetic fibers travel along the wall of the colon and rectum to supply the hindgut