Anus Vs Rectum - Difference Between These 2 Excretory Body Parts
Difference Between Rectum and Anus:
Anus and rectum are two terminal parts of the large intestine. Both these organs have different size, structure, function and location in the body.
As you look at the elementary canal diagram and observes it from anterior to the posterior, rectum forms the second last part and anus comes at the end.
In other words, the rectum is the concluding segment of the digestive tract which ends at the anus.
Fig. 2: Anus and Rectum diagram
Rectal region is a bit large in size as compared with the anus. The former measures in length from 10 to 15 cm, while the latter may extend only up to 5 centimeter.
The rectum has the same diameter as that of the sigmoid colon.
The job of rectum is to store the waste products in preparation for their ultimate removal out of the body.
The job of the anus, on the other hand, is to serve as an opening for the elimination of feces.
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