Large intestine

by James Pickering, PhD

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    This lecture we are going to look at the Large Intestine. So like the other lectures, we have looked at so far, we start off by looking at the position of the large intestine within the abdomen and how that projects on to the surface of the skin. And then we are going to explore the Gross Anatomy, we will look at the features like Caecum and Appendix and the various parts that form the Colon. We will look at the location and relations within the abdomen and explore Appendicitis We will look at the wall structure of the Colon and then Diverticulosis. We will also look at the Neurovascular supply. The large intestine is really important in the process of digestion and it is the main site for water reabsorption. It also plays an important part in storing the faeces. As we will see the indigestible remnants of the chyme that pass through the stomach and the small intestine. There it compacts and stores this material prior to defaecation. So if we look at the surface anatomy of the large intestine, then we can see on our torso, that we have this inverted "U" shape You see we have go the ileocecal junction about here, where the distal portions of the Ileum are continuous with the large intestine. And then inferior to that junction we find we have the cecum and the appendix attached. This is low in the right quadrant. So in the right inguinal region of the abdomen. The colon then passes upwards as the ascending colon heads towards the liver. The liver would be round about in this position which we can see in this diagram, here is the liver. And we have got what's known as the Hepatic flexure or what's called here the right...

    About the Lecture

    The lecture Large intestine by James Pickering, PhD is from the course Abdominal and Pelvic Anatomy. It contains the following chapters:

    • Surface anatomy of the large intestine
    • Large intestine in situ
    • Large intestine in isolation
    • Caecum and appendix
    • The wall structure of the large intestine
    • The vasculature of the large intestine
    • The nerve supply of the large intestine
    • Conclusion

    Quiz for lecture

    Test your knowledge with our quiz for lecture Large intestine.

    1. Right inguinal
    2. Left inguinal
    3. Right lumbar
    4. Left lumbar
    1. Transverse and sigmoid
    2. Transverse and ascending
    3. Transverse and descending
    4. Transverse and caecum
    1. Absorbing nutrients
    2. Reabsorption of water
    3. Absorption of vitamins
    4. Compacting and storing faeces
    1. Plicae circulares
    2. Haustra
    3. Taenia coli
    4. Omental appendices
    1. Superior mesenteric and inferior mesenteric arteries only
    2. Superior mesenteric only
    3. Inferior mesenteric only

    Author of lecture Large intestine

     James Pickering, PhD

    James Pickering, PhD

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    Fantastic lecture …
    By Soumya B. on 24. May 2016 for Large intestine

    Fantastic lecture, just the 2 questions. When you were saying about the Goblet cells in the wall of the Large Intestine you mentioned they secrete mucous to rehydrate what exactly? Is it the Glands? Also when you said the mesocolon's give the Large Intestine greater mobility what would be the benefit of this greater mobility?