Large Intestine, Rectum and Anus

Table of Contents

• Large Intestine
• Parts of Large Intestine
• Rectum
• Anus
• Summary
• What’s Next?

In the previous segment, we learnt about the Jejunum and Ileum. In this segment, we will learn about the large intestine, rectum and the anus.

What is Large intestine?

• The large intestine, also known as the colon, is the part of the alimentary canal that is mainly responsible for the Absorption of Water into the bloodstream.
• Absorption of inorganic ions like Sodium and Potassium also takes place in the large intestine.

What are the Different parts of the large intestine?

The large intestine is further divided into four parts: ascending colon, transverse colon, descending colon, and sigmoid colon.

Ascending colon

The part where the food moves upward is called the ascending colon.

Transverse colon

The part where the food moves across the colon is called transverse colon.

Descending colon

The part where the food travels downwards is called the descending colon.

Sigmoid colon

The large intestine ends with an S shape structure which is called the sigmoid colon.