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Large Intestine
| Content Provider | AK Lectures |
|---|---|
| Description | The large intestine follows the small intestine in the digestive tract. It consists of three segments - the cecum, the colon and the rectum. The cecum connects the ileum of the small intestine to the colon of the large intestine. It contains a small structure called the appendix. The colon itself can be subdivided into four segments - the ascending colon, transverse colon, descending colon and sigmoid colon. The function of the colon is to absorb the water, minerals and vitamins that have not been absorbed by other parts of the part. The colon also contains bacterial cells (E. coli) that are responsible for producing essential vitamins such as vitamin K, B-12 and thiamin. The rectum is a storage depot for the feces; it is capable of expanding when needed to hold more material. The anus contains the opening that allows the feces to travel out of the body. It contains an involuntary internal sphincter and a voluntary external sphincter. Feces consists predominately of water as well as roughage (composed of cellulose), dead bacterial cells, cells that have been scrapped off the walls of the intestine and stomach, enzymes, among other things. |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Biology ileum tract material thiamin coli colon enzymes travel opening structure |
| Content Type | Video |
| Educational Role | Teacher Student |
| Educational Use | Self Learning Lecture Reading |
| Resource Type | Video Lecture |
| Education Level | Under Graduate |
| Subject | Human physiology |
