Nerve Lesion of Upper Limb

by James Pickering, PhD

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    In this lecture, we’re going to look at the nerve lesions of the upper limb. So we’re going to have an initial overview of the nerve supply to the upper limb and then look at some typical location of the lesions, and how this leads to motor and sensory deficits. We’re going to look at some nerves that we’ve already covered in the course, so the musculocutaneous, the median and the ulnar nerves. And the radial, axillary and long thoracic nerves. So here we can see just on the screen on this right-hand side, we can see that we have the overview of the brachial plexus and the three cords coming away from the brachial plexus, the medial posterior, and lateral cord, how the medial and the lateral cord give rise to the musculocutaneous, the median, and the ulnar nerves, and how the posterior cord gives rise to the radial and the axillary nerve. So we’re going to look at those specific nerves and how damage to those nerves can lead to sensory and motor deficits. It’s important to appreciate that coming off the brachial plexus, we have a whole series of cutaneous nerves that come either from the brachial plexus itself or come from one of those five terminal branches, and they supply the skin of the upper limb, as we spoke about in one of the first lectures. We can see here various regions of the upper limb and how they are supplied by various nerves. So let’s start by looking at the musculocutaneous nerve. Remember, the musculocutaneous nerve, as we can see on the screen here, is involved in supplying muscles within the anterior compartment of the arm. So damage to the musculocutaneous nerve which can happen as a penetrating injury within the axilla, maybe during a...

    About the Lecture

    The lecture Nerve Lesion of Upper Limb by James Pickering, PhD is from the course Upper Limb Anatomy. It contains the following chapters:

    • Musculocutaneous nerve
    • Median nerve
    • Ulnar and radial nerves
    • Axillary and long thoracic nerves

    Included Quiz Questions

    1. Lateral three and a half
    2. Lateral four and a half
    3. Lateral four
    4. Lateral three
    5. Lateral two and a half

    Author of lecture Nerve Lesion of Upper Limb

     James Pickering, PhD

    James Pickering, PhD

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