Week 12: Small Animal Abdomen Part 2

Question 1

Paired arterial branches of the abdominal aorta

Answer 1

• Phrenicoabdominal (Caudal Phrenic and Cranial abdominal)
• Lumbar
• Renal
• Testicular/Ovarian
• Deep circumflex iliac
• External iliac
• Internal iliac

Question 2

Three unpaired branches of the abdominal aorta

Answer 2

• Celiac
• Cranial mesenteric
• Caudal mesenteric

Question 3

Three branches of the celiac artery

Answer 3

• Left gastric
• Hepatic
• Splenic

Question 4

Branches of the hepatic artery

Answer 4

• Right gastric

- Gastroduodenal

Question 5

Branches of the gastroduodenal artery

Answer 5

• Right gastroepiploic

- Cranial pancreaticoduodenal

Question 6

Branches of the splenic artery

Answer 6

• Left gastroepiploic

- Short gastric

Question 7

Branches of the cranial mesenteric artery

Answer 7

• Common trunk/ileocolic -Caudal pancreatico-duodenal

- Jejunal/ileal

Question 8

Branches of the ileocolic artery (common trunk)

Answer 8

• Middle colic
• Right colic
• Cecal
• Antimesenteric ileal branch

Question 9

Branches of the caudal mesenteric artery

Answer 9

• Left colic

- Cranial rectal

Question 10

Liver is supplied by

Answer 10

hepatic artery

Question 11

Spleen is supplied by

Answer 11

splenic artery

Question 12

Lesser curvature of the stomach is supplied by

Answer 12

Left and right gastric arteries

Question 13

Greater curvature of the stomach is supplied by

Answer 13

• Left and right gastroepiploic arteries

- Short gastric branch of the splenic artery

Question 14

Pancreas and duodenum is supplied by

Answer 14

Cranial and caudal pancreaticoduodenal arteries

Question 15

Jejunum is supplied by

Answer 15

Jejunal arteries/branches

Question 16

Ileum is supplied by

Answer 16

-Ileal arteries (mesenteric) -Antimesenteric ileal artery

Question 17

Cecum is supplied by

Answer 17

Cecal artery

Question 18

Ascending colon is supplied by

Answer 18

• Colic branch of the ileocolic artery

- Right colic artery

Question 19

Transverse colon is supplied by

Answer 19

• Middle colic artery

- Right colic artery

Question 20

Descending colon is supplied by

Answer 20

• Left colic artery

- Middle colic artery

Question 21

Cranial part of the rectum is supplied by

Answer 21

Cranial rectal artery

Question 22

Veins from paired organs will drain into

Answer 22

The caudal vena cava

Question 23

Veins from unpaired organs will drain into

Answer 23

hepatic portal vein

Question 24

Lymphatic vessels of the abdomen will drain into

Answer 24

The cisterna chyli, which is continued by the thoracic duct

Question 25

Sympathetic innervation to abdominal and pelvic viscera is via

Answer 25

Sympathetic chain -> splanchnic nerves -> mesenteric (pre-vertebral) ganglia

Axons leaving the mesenteric ganglia distribute post-ganglionic sympathetic innervation to the viscera

Question 26

Parasympathetic innervation to the abdominal and pelvic viscera is via the

Answer 26

Dorsal and ventral vagal nerve trunks and the pelvic nerves

Question 27

Caudal to the diaphragm, pre-SNS neurons may synapse within

Answer 27

Pre-vertebral ganglia

Question 28

Pre-vertebral ganglia are composed of

Answer 28

post-SNS cell bodies

Question 29

Splanchnic nerves distribute pre-ganglionic axons to what ganglia?

Answer 29

Pre-vertebral (mesenteric)

Question 30

What nerves distribute sympathetic innervation to the pelvic plexus?

Answer 30

Hypogastric nerve