Small Intestine and Large Intestine Flashcards
Function of small intestine
digestion and absorption of food
Name the 3 parts of the small intestine
Duodenum, jejunum, ileum
Where does the small intestine extend from?
Pylorus of stomach
Where does the small intestine end?
Ileocecal junction
Most proximal part of small intestine
Duodenum
Where does the duodenum extend from?
Pyloric sphincter of pylorus
Where does the duodenum end?
Duodenojejunal junction
Is the duodenum intraperitoneal or retroperitoneal?
Retroperitoneal (except proximal part)
Name the 3 parts of the duodenum (in consecutive order)
Superior part
Descending part
Inferior part
Ascending part
Erosion of mucosa, most commonly in the stomach or superior duodenum
Peptic ulcers
At which vertebral level is superior duodenum?
L1
What connects the superior part of the duodenum to the liver?
Hepatoduodenal ligament
Which part of the duodenum is the only intraperitoneal part of the duodenum?
Superior part of the duodenum
At which vertebral level(s) does the descending duodenum lie?
L1-L3
Which part of the duodenum curves about the head of pancreas?
Descending part of duodenum
Which part of the duodenum contains major duodenal papilla?
Descending part of duodenum
At which vertebral level is the inferior part of duodenum?
L3
Which part of the duodenum is posterior to transverse colon?
Descending duodenum
Which part of the duodenum is anterior to the inferior vena cava and abdominal aorta?
Inferior duodenum
Which part of the duodenum is posterior to superior mesenteric artery and vein?
Inferior duodenum
At which vertebral level is the ascending duodenum?
L3-L2
Which part of the duodenum is connected to the jejunum via duodenojejunal flexure?
Ascending duodenum
Bile duct and main pancreatic ducts enter wall of descending duodenum via what?
Hepatopancreatic ampulla
The duodenojejunal flexure is supported by the attachment of which muscle?
Suspensory muscle of the duodenum
Where does the jejunum extend from?
Duodenojejunal junction