Large Intestine (Introduction)

Large Intestine Diagram

Small Intestine

The large intestine is part of the digestive system and is located in the lower area of the abdomen within the large membrane known as the peritoneum (which has 2 layers separated by a small amount of liquid, enabling the organs contained within it to move freely over and around each other). The large intestines begin at the bottom of the abdomen, where material is received from the ileum, which is the final part of the small intestine.

The large intestine consists of the cecum (sometimes written caecum), the colon (which consists of 4 parts), and the rectum. Hence, in common with the small intestines, the large intestines can also be described in three parts:

  1. The cecum is the first part of the large intestine and so receives material from the ileum.
  2. The second part of the large intestines is the colon, which initially rises upwards within the abdomen (ascending colon), then moves across the body beneath the liver and stomach (transverse colon), then finally passes downwards back to the lower abdomen (descending colon).
  3. The third part of the large intestines is the rectum which is located in the approx. centre of the lower abdomen.

The large intestine can be described using diagrams - see the simple diagram of the large intestine below to understand the flow of material through the large intestine. For more detail see the labelled diagram of the large intestine.

 

Simple Diagram of the Large Intestine (main structures and flow only)

This diagram is interactive - click on a text label (indicated in green) for more information about that topic, on another page.

Ascending Colon Transverse Colon Small Intestine Ascending Colon Transverse Colon Small Intestine Rectum Transverse Colon Sigmoid Colon Transverse Colon Descending Colon Transverse Colon Descending Colon Transverse Colon Descending Colon Ascending Colon Transverse Colon Small Intestine Rectum Sigmoid Colon Descending Colon Small Intestine Ascending Colon Rectum Ascending Colon Rectum Rectum Sigmoid Colon Descending Colon Rectum Sigmoid Colon Click here for a more detailed large labelled diagram of the large intestine Click here for a more detailed large labelled diagram of the large intestine Rectum Rectum Sigmoid Colon

Quick Summary:

The large intestine includes:

    1. The Caecum, also called cecum
    2. The Appendix
    3. The Ascending Colon (see above)
    4. The Transverse Colon (see above)
    5. The Descending Colon (see above)
    6. The Sigmoid Colon (see above)
    7. The Rectum (see above)
    8. The Anal Canal

The parts of the large intestine in the above list, together with more detailed information about the anatomy of the large intestine is shown on the more detailed diagram of the large intestine.

Large Intestine Knowledge Checklist:

The large intestine is one of the organs in the human body.

  • Which body system is the large intestine part of ?
    Answer: The Digestive System
  • Describe the location of the large intestine in the human body.
    Answer: The lower area of the abdomen within the peritoneum
  • Describe with the aid of a diagram the structure of the large intestine ... which is the same as:
    Describe with the aid of a diagram the anatomy of the large intestine.
    Answer: See diagram of the large intestine
  • What are the functions of the large intestine ?
    Answer: See functions of the large intestine

Depending on the level of study, students may be expected to have more detailed knowledge of how the large intestine works.

See also the small intestine and a more detailed diagram of the large intestine.

In the News:

Concerns about the health impact of social media - 16 Nov '17

Psychological benefits of different types of natural environments - 2 Nov '17

Research confirms that good moods are contagious. Depression isn't. - 21 Sep '17

Robotic exoskeleton hopes for alleviating crouch gait in children with cerebral palsy - 25 Aug '17

Short simple mindfulness training could help drinkers reduce alcohol intake - 24 Aug '17

Artificial outdoor lighting and breast cancer - 18 Aug '17

Benefits of interval training for vascular health of older women - 7 Aug '17

Brits walk less than one mile per day - 25 May '17

Angels love to assist in the selection of angel gifts or other special items for your loved ones.

This is not medical, First Aid or other advice and is not to be used for diagnosis or treatment. Consult an expert in person. Care has been taken when compiling this page but accuracy cannot be guaranteed. This material is copyright.

IvyRose Holistic Health 2003-2017.