Blood Supply – Anterolateral Abdominal Wall

by James Pickering, PhD

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    00:00 If you are familiar with the thoracic cavity then you will be familiar with this diagram because we can see here we have our two subclavian arteries and running down from the subclavian artery, we have two what are known as internal thoracic arteries. These two internal thoracic arteries that run either side of the sternum. Now, once they get to about the sixth costal cartilage where it attaches to the sternum, so, 1, 2, 3 4, 5, 6, so round about here on either side, then this internal thoracic artery divides... divides into a blood vessel that goes around here and supplies the diaphragm as the musculophrenic artery, we won't worry too much about that as yet. But, internal thoracic divides musculophrenic around here and then it carries on as the superior epigastric artery... carries on as the superior epigastric artery which run down in this direction.

    00:57 As we get towards the end of the course, we are going to look at the branches of the internal iliac artery, but would jump to that quite quickly now. And here, we can see the iliac blood vessels. And the iliac blood vessels will divide into internal and external, supply the organs of the pelvis and then go on and supply the lower limb. But, an important branch coming up is inferior epigastric, this one here. This inferior epigastric artery is running up in this direction and that's the blood vessel we saw on the previous slide which we can see running up in this direction, inferior epigastric. Inferior epigastric is then going to anastomose with superior epigastric and that?s where these two arteries are going to join. They join together to form a complete circuit. These are really important as they go on to supply the muscles of the anterolateral abdominal wall. There are other smaller blood vessels which if you are interested you could look up. You have various other blood vessels that come off in this region to supply the musculature. But, these epigastric regions run, epigastric blood vessels run within the rectus sheath.

    About the Lecture

    The lecture Blood Supply – Anterolateral Abdominal Wall by James Pickering, PhD is from the course Abdomen.

    Included Quiz Questions

    1. Internal thoracic
    2. Subclavian
    3. Musculophrenic
    4. Inferior epigastric
    1. External iliac artery
    2. Internal iliac artery
    3. Musculophrenic artery
    4. Femoral artery
    5. Internal thoracic artery
    1. Internal thoracic artery
    2. Subclavian artery
    3. Superior epigastric artery
    4. Inferior epigastric artery
    5. Internal iliac artery
    1. At the level of the sixth costal cartilage
    2. At the level of the fifth costal cartilage
    3. At the level of the fourth costal cartilage
    4. At the level of the seventh costal cartilage
    5. At the level of the eighth costal cartilage

    Author of lecture Blood Supply – Anterolateral Abdominal Wall

     James Pickering, PhD

    James Pickering, PhD

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    Not detailed enough
    By Leo R. on 11. May 2019 for Blood Supply – Anterolateral Abdominal Wall

    not really clear. Not a good graphic to show and not highlighted properly to see the clear course of th arteries

    By Micol O. on 13. December 2017 for Blood Supply – Anterolateral Abdominal Wall

    This was a very clear, easy to learn and memorize lecture.