Neurovascular Supply

Question 1

What branches of the abdominal aorta is the GI tract supplied with?

Answer 1

The coeliac trunk, the superior mesenteric artery and the inferior mesenteric artery

Question 2

Where does the coeliac trunk arise from?

Answer 2

It arises from the T12 vertebral level

Question 3

Where does the superior mesenteric artery leave the abdominal aorta?

Answer 3

At the lower boarder of L1, inferior to the coeliac truck

Question 4

Where does the inferior mesenteric artery leave the abdominal aorta?

Answer 4

At L3

Question 5

What foregut structures does the coeliac trunk supply?

Answer 5

Stomach, superior duodenum, liver, gallbladder, spleen and pancreas

Question 6

What does the coeliac trunk immediately split into?

Answer 6

3 branches - common hepatic, left gastric and splenic arteries

Question 7

What is the stomach supplied by?

Answer 7

The left and right gastric arteries and the left and right gastropiploic arteries

Question 8

What is the superior duodenum supplied by?

Answer 8

The superior pancreaticduodenal artery

Question 9

What is the liver supplied by?

Answer 9

The left and right hepatic arteries

Question 10

What is the gallbladder supplied by?

Answer 10

The cystic artery - the branch of the right hepatic artery

Question 11

What is the spleen supplied by?

Answer 11

The splenic artery

Question 12

What is the pancreas supplied by?

Answer 12

The superior pancreaticoduodenal

Question 13

What does the superior mesenteric artery supply?

Answer 13

The midgut structures - the small and large intestine from the inferior duodenum to the proximal Half of the transverse colon

Question 14

What does the pancreaticoduodenal artery supply?

Answer 14

Supplies the inferior part of the duodenum and pancreas and anastomoses with its superior counterpart

Question 15

Where does the pancreaticoduodenal artery arise from?

Answer 15

The superior mesenteric artery

Question 16

What so branches of the superior mesenteric artery form?

Answer 16

Large loops known as arcades in the mesentery - they supply the jejunum and ileum

Question 17

What does the ileocolic artery supply?

Answer 17

Supplies the terminal ileum, caecum, vermiform appendix and proximal ascending colon

Question 18

What does the right colic artery supply?

Answer 18

The distal ascending colon

Question 19

What does the colic artery supply?

Answer 19

The distal transverse colon

Question 20

What does the inferior mesenteric artery supply?

Answer 20

The hind gut structures - including the large intestine from the proximal transverse colon to the rectum

Question 21

What does the left colic artery supply?

Answer 21

The descending colon. This artery anastomses with the middle colic artery of the superior mesenteric artery

Question 22

What is the sigmoid Colon supplied with?

Answer 22

Sigmoid arteries

Question 23

What is the superior rectal artery supplied with?

Answer 23

The proximal rectum

Question 24

What is the distal rectum not supplied by?

Answer 24

The abdominal aorta

Question 25

What is the distal rectum supplied with?

Answer 25

Branches of the internal iliac artery

Question 26

Describe the blood that has flowed through the intestines

Answer 26

It is full of amino acids and monosaccharides as well as poisons and toxins that may have been absorbed

Question 27

What needs to happen to the blood that has travelled through the intestine before it can be returned to the heart and lungs?

Answer 27

It needs to be filtered by the liver to remove waste and if necessary excrete or store absorbed molecules

Question 28

Where does blood drain from the capillaries of the intestines to?

Answer 28

Into the superior and inferior mesenteric veins which joins the splenic vein to form the hepatic portal vein

Question 29

What does the hepatic portal vein carry?

Answer 29

It carries deoxygenated blood full of absorbed molecules from the intestines to the liver