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Branches of Radial Nerve 3D

                                                                                                             

  • Deep Branch of Radial Nerve  

    • * Enters the supinator muscle, winds laterally around the radius, and supplies the extensor carpi radialis brevis and supinator muscles.
    • * Emerges from the supinator as the posterior interosseous nerve and innervates the extensor muscles of the forearm..                                            

  • Superficial Branch:

    • * Descends in the forearm under cover of the brachioradialis muscle and then passes dorsally around the radius.
    • * Runs distally to the dorsum of the hand to innervate the skin of the radial side of the hand and the radial two and one-half digits over the proximal phalanx. This nerve does not supply the skin of the distal phalanges.                                                                                                                                                                                 

  • Muscular Branches:

    • * Supply the brachioradialis and extensor carpi radialis longus.

 

  • Posterior Brachial Cutaneous Nerve:

    • * It is a branch of the radial nerve given off in the axilla. Its root value is C5.
    • * Supplies the skin of the back of the arm from the insertion of the deltoid to the olecranon process.

 

  • Posterior Antebrachial Cutaneous Nerve​​​​​​​:

    • * It arises from the radial nerve in the radial groove.
    • * Descends posterior to the lateral epicondyle and supplies the skin of the back of the forearm.

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  • Deep Branch of Radial Nerve  

    • * Enters the supinator muscle, winds laterally around the radius, and supplies the extensor carpi radialis brevis and supinator muscles.
    • * Emerges from the supinator as the posterior interosseous nerve and innervates the extensor muscles of the forearm..                                            

  • Superficial Branch:

    • * Descends in the forearm under cover of the brachioradialis muscle and then passes dorsally around the radius.
    • * Runs distally to the dorsum of the hand to innervate the skin of the radial side of the hand and the radial two and one-half digits over the proximal phalanx. This nerve does not supply the skin of the distal phalanges.                                                                                                                                                                                 

  • Muscular Branches:

    • * Supply the brachioradialis and extensor carpi radialis longus.

 

  • Posterior Brachial Cutaneous Nerve:

    • * It is a branch of the radial nerve given off in the axilla. Its root value is C5.
    • * Supplies the skin of the back of the arm from the insertion of the deltoid to the olecranon process.

 

  • Posterior Antebrachial Cutaneous Nerve​​​​​​​:

    • * It arises from the radial nerve in the radial groove.
    • * Descends posterior to the lateral epicondyle and supplies the skin of the back of the forearm.

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