Week 12: Small Animal Abdomen Part 2 Flashcards
Paired arterial branches of the abdominal aorta
- Phrenicoabdominal (Caudal Phrenic and Cranial abdominal)
- Lumbar
- Renal
- Testicular/Ovarian
- Deep circumflex iliac
- External iliac
- Internal iliac
Three unpaired branches of the abdominal aorta
- Celiac
- Cranial mesenteric
- Caudal mesenteric
Three branches of the celiac artery
- Left gastric
- Hepatic
- Splenic
Branches of the hepatic artery
- Right gastric
- Gastroduodenal
Branches of the gastroduodenal artery
- Right gastroepiploic
- Cranial pancreaticoduodenal
Branches of the splenic artery
- Left gastroepiploic
- Short gastric
Branches of the cranial mesenteric artery
- Common trunk/ileocolic -Caudal pancreatico-duodenal
- Jejunal/ileal
Branches of the ileocolic artery (common trunk)
- Middle colic
- Right colic
- Cecal
- Antimesenteric ileal branch
Branches of the caudal mesenteric artery
- Left colic
- Cranial rectal
Liver is supplied by
hepatic artery
Spleen is supplied by
splenic artery
Lesser curvature of the stomach is supplied by
Left and right gastric arteries
Greater curvature of the stomach is supplied by
- Left and right gastroepiploic arteries
- Short gastric branch of the splenic artery
Pancreas and duodenum is supplied by
Cranial and caudal pancreaticoduodenal arteries
Jejunum is supplied by
Jejunal arteries/branches
Ileum is supplied by
-Ileal arteries (mesenteric) -Antimesenteric ileal artery
Cecum is supplied by
Cecal artery
Ascending colon is supplied by
- Colic branch of the ileocolic artery
- Right colic artery
Transverse colon is supplied by
- Middle colic artery
- Right colic artery
Descending colon is supplied by
- Left colic artery
- Middle colic artery
Cranial part of the rectum is supplied by
Cranial rectal artery
Veins from paired organs will drain into
The caudal vena cava
Veins from unpaired organs will drain into
hepatic portal vein
Lymphatic vessels of the abdomen will drain into
The cisterna chyli, which is continued by the thoracic duct
Sympathetic innervation to abdominal and pelvic viscera is via
Sympathetic chain -> splanchnic nerves -> mesenteric (pre-vertebral) ganglia
Axons leaving the mesenteric ganglia distribute post-ganglionic sympathetic innervation to the viscera
Parasympathetic innervation to the abdominal and pelvic viscera is via the
Dorsal and ventral vagal nerve trunks and the pelvic nerves
Caudal to the diaphragm, pre-SNS neurons may synapse within
Pre-vertebral ganglia
Pre-vertebral ganglia are composed of
post-SNS cell bodies
Splanchnic nerves distribute pre-ganglionic axons to what ganglia?
Pre-vertebral (mesenteric)
What nerves distribute sympathetic innervation to the pelvic plexus?
Hypogastric nerve
