Lectures

Development of the Spleen and the Stomach – Liver, Gallbladder and Pancreas Development

by John McLachlan, PhD
(1)

Questions about the lecture
My Notes
  • Required.
Save Cancel
    Learning Material 2
    • PDF
      Slides 16 Gut Developmentand liver gall bladder pancreas McLachlan.pdf
    • PDF
      Download Lecture Overview
    Report mistake
    Transcript

    00:00 Now we’re going to look at the rotation of the stomach and its consequences for the dorsal mesentery and the development of the spleen.

    00:08 In this view, we can see the dorsal mesentery suspending the gut and the ventral mesentery attaching it to the body wall. I’ve sketched in the greater curvature of the stomach in this view.

    00:20 We can now also see the spleen developing in the dorsal mesentery. As the stomach rotates through 90 degrees clockwise as seen from above, this dorsal mesentery is thrown over to the side. We can see the spleen has shifted markedly to the left hand side of the body.

    00:38 In this position, it will attach to the back of the abdominal cavity and adhere there.

    00:45 What will happen next is the stomach will rotate again, but in this case, so as it comes to lie transversally across the body axis with the gut entering from the left and exiting on the right you will note that the greater curvature now comes to lie downwards pointing towards the feet. You can also see that this has enclosed a space, and the space inside behind the stomach is known as the lesser sac of the peritoneum. The part which is hanging down in front is reminiscent of an apron and will cover the remainder of the gut. And from that, is known by the Latin word for apron, the omentum. So together, that forms the omental bursa and space behind and inside it is the lesser sac of the peritoneum. The spleen remains attached to the inside of the abdominal cavity further up but on the left-hand side.


    About the Lecture

    The lecture Development of the Spleen and the Stomach – Liver, Gallbladder and Pancreas Development by John McLachlan, PhD is from the course System-Specific Embryology with John McLachlan.


    Author of lecture Development of the Spleen and the Stomach – Liver, Gallbladder and Pancreas Development

     John McLachlan, PhD

    John McLachlan, PhD


    Customer reviews

    (1)
    5,0 of 5 stars
    5 Stars
    5
    4 Stars
    0
    3 Stars
    0
    2 Stars
    0
    1  Star
    0