large Intestine: Structure/Function

large Intestine: Structure/Function

Author: Nathan Lampson

This lesson will discuss the structure and function of the large intestine and examine its role in digestion.

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Large Intestine: Structure/Function

Source: Image from Adobe Illustrator; Public Domain

  • Large Intestine/Colon

    The last major tubular organ of the alimentary canal, it forms a frame around the small intestine. The colon is responsible for absorbing water and electrolytes and converting the bolus into fecal matter.

  • Rectum

    The digestive system analog to the urinary bladder, the rectum stores fecal matter until it’s time to excrete it from the body.

  • Appendix

    A vestigial organ that is located on the lower right side of the colon, the appendix contains lymph nodules called Peyer’s patches. Sometimes the appendix becomes inflamed and ruptures during a condition called appendicitis.

  • Anus

    The opening of the rectum, the anus is the last part of the alimentary canal that fecal matter escapes through.