Vasculature And Innervation Of The Abdomen

Question 1

What are the three unpaired arteries that branch off of the abdominal aorta?

Answer 1

Celiac artery
Cranial mesenteric artery
Caudal mesenteric artery

Question 2

What does the celiac artery supply?

Answer 2

Esophagus, liver, stomach, lesser/greater omentum, spleen, duodenum and pancreas

Question 3

What are the three branches off of the celiac artery?

Answer 3

Left gastric a.
Hepatic a.
Splenic a.

Question 4

What is the left gastric a. found?

Answer 4

Lesser curvature of the stomach

Question 5

What artery does the splenic artery turn into after making a “u” turn?

Answer 5

Left gastroepiploic a.

Question 6

What is the largest branch of the celiac artery and what does it give off?

Answer 6

Hepatic artery

Continues towards the right to give off the right gastric a.

Gastroduodenal is the terminal portion of the hepatic artery and will give off the right gastroepiploic artery and the cranial pancreaticoduodenal artery

Question 7

What unpaired artery is also referred to as the axis of the root of the mesentary?

Answer 7

Cranial mesenteric artery

Question 8

What are the six branches of the cranial mesenteric artery?

Answer 8

Middle colic
Right colic
Ileocolic 
Caudal pancreaticoduodenal 
Jejunal
Ileal

Question 9

What does the middle colic artery supply?

Answer 9

The transverse and descending colon and the left colic flexure

Question 10

What does the right colic artery supply?

Answer 10

The transverse colon and distal part of the ascending colon

Question 11

What are the three parts of the ileocolic artery?

Answer 11

Colic branch: supply proximal part of the ascending colon, combines with the right colic

Cecal branch: supplies the cecum, anti mesenteric ileal branch is the termination of this branch

Mesenteric ileal artery: continuation of the ileocolic artery after giving off the cecal branch and combines with the last jejunal artery

Question 12

What does the caudal pancreaticoduodenal artery supply?

Answer 12

The right lobe of the pancreas and the descending duodenum

Question 13

What re the branches off of the caudal mesenteric artery and what does it supply?

Answer 13

Left colic artery: supplies the descending colon

Cranial rectal artery: supplies the cranial portion of the rectum

Question 14

What are the six paired vessels of the abdominal aorta?

Answer 14

Lumbar arteries
Deep circumflex arteries
Phrenicoabdominal arteries
Renal arteries
Testicular arteries
Ovarian arteries

Question 15

What are the branches off of the phrenicoabdominal arteries?

Answer 15

Cranial abdominal and caudal phrenic artery

Question 16

What nerves innervate the adrenal gland or go towards the celicomesenteric plexus?

Answer 16

Major and minor splanchnic nerves

Question 17

What nerve leaves the lumbar sympathetic chain without synapsids and distributes pre-ganglionic nerve fibers to the cranial and caudal mesenteric ganglia?

Answer 17

Lumbar splanchnic nerve

Question 18

Name the ganglia that are in the abdominal region?

Answer 18

Celiac ganglia
Cranial mesenteric ganglia
Caudal mesenteric ganglia
Sympathetic chain of ganglia

Question 19

What nerves supply parasympathetic innervation to the GI tract from the esophagus as far as the left colic flexure?

Answer 19

Ventral and dorsal vagal trunks