1 / 16

Notes: Large Intestine

The large intestine, comprising regions like cecum and colon, plays a crucial role in water absorption and waste elimination. Learn about its anatomy, appendix function, and the role of colon bacteria. Read about the passage of waste through the large intestine and the mechanism of rectum and anus. Explore the evolutionary aspects and the importance of this vital organ in maintaining overall health.

vbell
Download Presentation

Notes: Large Intestine

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Notes: Large Intestine Thursday 1-7-10

  2. (1) Overall Function • Reabsorb water • Pass out remaining waste to rectum + anus

  3. (2) Regions • Cecum = 1st Chamber • Ascending Colon = Upwards • Transverse Colon = Across • Descending Colon = Downwards • Rectum & Anus

  4. (3) Appendix • Sits beneath cecum • Often collects waste and bacteria  Appendicitis • Functions: • Produces white blood cells and antibodies for immunity. • Used to serve a role in cellulose digestion. • Not needed  Weeded out through Evolution?!?

  5. (4) Passing Through • Waste slowly moves through Large Intestine. • Total Length = 1.5-2m long • Water reabsorbed through microvilli. • Result = Solidified waste mass (Feces)

  6. (5) Colon Bacteria • Over 700 species of bacteria • Origins: • Food Eaten • Anus • Helpful: • Metabolize left over proteins • Metabolize indigestible carbohydrates • Produce vitamins from inorganics

  7. (6) Rectum & Anus • Rectum = Inside part • Anus = Outside part = Butthole • Mechanism: • Remaining waste drops first into rectum • Lands on top of Involuntary Sphincter • Opens w/pressure • Lands on top of Voluntary Sphincter • Made of Skeletal Muscle that you control

More Related