Lower Abdomen

Question 1

Permanent folds within intestine (more diffused distally)

Answer 1

Pelicae Circularis

Question 2

Transpyloric Plane is at vertebral level

Answer 2

L1

Question 3

Moving distally in small intestine leads to

Answer 3

• Shorter Vasa Recta
• Longer and more arterial arcades
• More fatty deposits
• Less plicae circularis
• More lymph vessels
• More opaque

Question 4

Remnant of embryonic yolk stalk; fingerlike pouch; proximal to ileocecal valve; can inflame and mimic appendicitis

Answer 4

Meckel’s (Ileal) Diverticulum

Question 5

Appendicitis pain location

Answer 5

Vague pain in periumbilical region (T10 nerve, L4 vertebral levels)
->Severe pain from R. Lower quadrant

Question 6

Anastomoses between colic branches for collateral circulation form a consistent vascular arc around the colon via the _______

Answer 6

Marginal arteries

Question 7

Dilated esophageal veins ->

Answer 7

Esophageal Varices

Question 8

Dilated epigastric veins ->

Answer 8

Caput Madusae

Question 9

Dilated infr. and mid. Rectal veins ->

Answer 9

Hemorrhoids

Question 10

Sympathetic fibers originate from ______

Answer 10

T5-T12-L2

Thoracolumbar

Question 11

Parasympathetic fibers originate from _____

Answer 11

CN X (Vagus n.) and S2-4
(Craniosacral)

Question 12

T5-T9 ->

Answer 12

Greater Splanchnic n. -> Celiac Ganglion ->

Foregut

Question 13

T10-T11->

Answer 13

Lesser Splanchnic n. ->
Superior Mesenteric Ganglion ->
Midgut

Question 14

T12 ->

Answer 14

Least Splanchnic n. ->
Renal/Para-aortic ganglia ->
Kidneys and adrenals

Question 15

L1-L5 ->

Answer 15

Lumbar Splanchnic nn. ->
Inferior Mesenteric ganglion ->
Hindgut

Question 16

Preganglionic Parasympathetics from _____ on upper arterial branches (______, ______, ______).
Postganglionic are in walls of _____, _____, _____ organs.

Answer 16

CN X

Celiac Trunk, SMA, Renal aa.

Foregut, Midgut, Renal

Question 17

Preganglionic Parasympathetic nerves from ______ travel on lower arterial branches (____).

Postganglionic Parasympathetic are in walls of _____ organs.

Answer 17

S2-S4

IMA and branches

Hindgut