Difference Between Colon and Rectum

The colon and rectum have different functions. The rectum and colon are two parts of the large intestine. Both are very important parts of the human digestive system and have different effects on the body.

1. Colon: The colon begins at the connection between the cecum and the ileum. It is the large intestine about 15 cm above the edge of the anus. The bladder and reproductive organs are distributed around it. The colon is an important channel connecting the small intestine and the rectum. It can effectively absorb water from feces and store feces. The feces in the intestines are transported to the rectum every day. The colon is a very important organ for synthesizing vitamins for the body. It can excrete food from the intestines. Generally, it will be directly discharged into the intestines through digestion in the stomach. The small intestine absorbs nutrients, and the colon mainly absorbs water, inorganic salts and vitamins in food, which plays a role in transporting waste tissue from the body, which is beneficial to the rapid excretion of toxins from the body.

2. Rectum: The rectum is the very end of the intestine, connected to the sigmoid colon at the top and the anus at the bottom. It plays a very important role in the digestive system. The function of the rectum is to store feces and trigger the urge to defecate. It transmits the receptors in the intestinal wall to the nerve center, causing the cerebral cortex to produce a defecation reflex. It also regulates the body's endocrine system to a certain extent, and can reabsorb the beneficial substances in the feces for the body to use.