The large intestine. Flashcards
Is the large intestine longer or shorter than the small intestine?
The large intestine is shorter than the small intestine, but it is much wider.
What are the 3 areas of the large intestine?
The cecum.
The colon.
The rectum.
What is the cecum of the large intestine?
A small blind sac that lies lies at the junction of the ileum and the colon.
In the dog and cat will ingesta enter the cecum?
No, it usually bypasses the cecum and goes straight to the colon.
The ileum of the small intestine can empty into the cecum via what orifice?
Via the ileo-cecal orifice.
The ileum of the small intestine can empty into the colon via what orifice?
The ileo-colic opening.
What name is given to the 1st part of the colon?
The ascending colon.
What happens to any food that enters the cecum?
It travels down the blind sac before reverse peristaltic movement move it back towards the colon.
What is the difference between the shape of the cecum in the cat and dog?
In the cat the cecum is not twisted, but in the dog it is twisted.
Why can the twisted cecum of the dog lead to complications?
Because gases accumulate inside the cecum.
What are the 3 sections of the colon?
The ascending colon.
The transverse colon.
The descending colon.
Where is the ascending colon located relative to the median plane/mesentery?
On the right side of the mesentery.
What major structure is found in the ascending colon?
The right colic flexure (hepatic flexure).
This flexure is close to the liver.
The right colic/hepatic flexure marks what boundary?
The boundary between the ascending and transverse colon.
Where is the transverse colon located relative to the median plane/mesentery?
It crosses the median plane.
