Gi Tract Part 2 Flashcards
Which 3 branches leave the aorta and supply gi tract and what lumbar level
Coeliac trunk (superior of L1)
Superior mesenteric artery (inferior of L1)
Inferior mesenteric artery (L3)
What does coeliac trunk supply
Oesophagus, stomach, liver, superior duodenum and pancreas
What are the main branches of coeliac trunk
Left gastric artery (which has oesophageal branches)
Common hepatic
Splenic artery
What supplies the stomach
The left and right gastric supply the lesser curvature
Left and right gastroepiploic supply greater curvature
What are the branches of the splenic artery
Short gastric branches for fundus supply
Splenic branches
Left gastroepiploic
What supplies the superior duodenum and pancreas and what does it stem from
The pancreaticoduodenal artery
The right one is a branch from the common hepatic artery
What else supplies the pancreas
The splenic artery
Where does the right gastric artery stem from
Also the common hepatic duct and supplies also the lesser curvature of stomach
Which other 3 branches of the common hepatic are there
Left branch, right branch and the cystic artery
What does the superior mesenteric supply
From inferior duodenum to the right colic flexure
Supplies all of the si from inferior duodenum
Suppplies large from vermiform appendix/caecum to right colic flexure and transverse colon
Also supplies the inferior pancreas/duodenum
What from the superior mesenteric supplies pancreas and inferior duodenum
Inferior pancreaticoduodenal artery
What are arcades
Large loops of branches which supply the jejunum and ileum
Where are the arcades
In the mesentery (peritoneum which attaches si to wall)
Which branch from superior mesenteric supplies the terminal ileum, vermiform appendix and inferior ascending colon
Ileocolic artery
Which artery supplies the superior ascending colon and the transverse colon
Right colic artery and middle colic artery for transverse
Which branch artery from the inferior mesenteric branch anastomoses with the middle colic artery from the superior mesenteric
The left colic artery
Which artery branch from inferior ma supplies the sigmoid colon
Sigmoidal
Which part of the rectum is supplied by the superior rectal artery branch of ima
The proximal rectum (distal not supplied by abdominal aorta)
What are the parts of the stomach
Fundus Body Antrum Pyloric sphincter Lesser curvature at top Greater curvature below
What do the fundus and body secrete and from whcih cells
Gastric acid from parietal cells
Pepsinogen from chief cells
What does the antrum release
Endocrine like histamine, gastrin and somatostatin
What do these endocrine do
Control secretions and gastric motility
What are the incisions which look like villi but aren’t called in stomach mucosa
Gastric pits
Where are the parietal usually
Top of the gastric pits/ mucosa and they’re surface epithelial