The Gastrointestinal System - Large intestine Flashcards Preview

Anatomy of the Gastrointestinal System > The Gastrointestinal System - Large intestine > Flashcards

Flashcards in The Gastrointestinal System - Large intestine Deck (9)
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1
Q

Identify the ileocaecal junction, caecum and the appendix.

A

On image

2
Q

identify the ascending, transverse and descending colon, hepatic flexure, splenic flexure, rectum, anal canal.

A

On image

3
Q

What is the mesoappendix?

A

Mesoappendix: fold of mesentery that suspends the appendix from terminal ileum.

4
Q

Describe the blood supply of the splenic flexure

A

The blood supply to the splenic flexure and beyond is via the inferior mesenteric artery. It supplies 1/2-1/3 of the transverse colon, descending colon, sigmoid colon, and rectum.

5
Q

What is the mesentery of the transverse colon called?

What does it connect?

A

transverse mesocolon

It connects the transverse colon to the posterior wall of the abdomen and crosses the duodenum and pancreas.

6
Q

What differences are there between the small intestine and large intestine?

A

o Taeniae* (tapeworm) coli
o Haustra
o Appendices epiploicae

7
Q

What does the descending colon form?

A

the sigmoid colon, and finally the rectum.

8
Q

What is the dip in the peritoneum lateral to the ascending and descending colon called?

What is the function of these dips?

A

These are the paracolic gutters. Fluid may collect in and course through these gutters potentially spreading infection (if infection is present within the abdomen).

9
Q

Do the sigmoid colon (sigmoid mesocolon) and upper part of the rectum have a mesentery?

A

The sigmoid colon (sigmoid mesocolon) and the upper part of the rectum have a mesentery but the lower rectum lies below the pelvic peritoneum.