Anatomy of the Hand

by James Pickering, PhD

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    In this lecture, we’re going to look at the hand. So first of all, we’re going to look at the dorsal aspect of the hand, and we’ll look at some of the extrinsic extensor tendons that originate from muscles in the forearm and pass on to the dorsal surface of the hand. We’ll then look at the anatomical snuff box which we mentioned in the previous lecture, and we’ll also look at the tendinous sheath. We’ll then move on to the palmar aspect and look at the carpal tunnel where some important flexor tendons from extrinsic muscles pass through. We’ll look at numerous compartments within the palmar aspect of the hand. We’ll look at the muscles and then the extrinsic flexor tendons. So here, we can see the dorsal aspect of the hand. It’s the posterior surface. We’ve got the thumb over on this side. So this is the lateral aspect. And here we have with the fifth digit, we have the medial aspect. We can see we have the extensor retinaculum here, and we can see the tendons from the extensor muscles in the forearm are passing deep to this structure as they pass into the dorsum of the hand. And this extensor retinaculum is an important thickening of the antebrachial or the forearm deep fascia. It prevents them from bowstringing. It prevents those extrinsic tendons from bowstringing. We can see that we have the tendons of extensor digitorum and extensor digiti minimi and extensor indicis, all passing through this tunnel which is created dorsally to the wrist, so between the carpal bones of the wrist and the extensor retinaculum. We can see the extensor digitorum tendons here. We can see extensor digiti minimi here. And we can see extensor indicis passing all the way to the index finger....

    About the Lecture

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

    • Dorsum
    • Palmar aspect
    • Adductor compartment
    • Carpal tunnel
    • Short muscles and extrinsic tendons

    Author of lecture Anatomy of the Hand

     James Pickering, PhD

    James Pickering, PhD

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