What is the function of rectum?

Explanation

### Step-by-Step Solution:

1. **Identify the Location**: The rectum is a part of the large intestine, which is the final section of the digestive system.

2. **Understand the Structure of the Large Intestine**: The large intestine consists of several parts, including the cecum, colon, and rectum. The rectum is the last part of the large intestine.

3. **Function of the Rectum**: The primary functions of the rectum are:
- **Transfer of Undigested Food**: The rectum acts as a passageway that transfers undigested food from the colon to the anus.
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