Muscular branches of the radial nerve
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| Nerve: Muscular branches of the radial nerve | ||
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| Superficial palmar nerves. | ||
| Latin | rami musculares nervi radialis | |
| Gray's | subject #210 943 | |
| Innervates | posterior compartment of the arm, mobile wad | |
| From | radial nerve | |
| Dorlands/Elsevier | r_02/12691027 | |
The muscular branches of the radial nerve supply the Triceps brachii, Anconæus, Brachioradialis, Extensor carpi radialis longus, and Brachialis, and are grouped as medial, posterior, and lateral.
[edit] Medial
The medial muscular branches supply the medial and long heads of the Triceps brachii.
That to the medial head is a long, slender filament, which lies close to the ulnar nerve as far as the lower third of the arm, and is therefore frequently spoken of as the ulnar collateral nerve.
[edit] Posterior
The posterior muscular branch, of large size, arises from the nerve in the groove between the Triceps brachii and the humerus.
It divides into filaments, which supply the medial and lateral heads of the Triceps brachii and the Anconæus muscles.
The branch for the latter muscle is a long, slender filament, which descends in the substance of the medial head of the Triceps brachii.
[edit] Lateral
The lateral muscular branches supply the Brachioradialis, Extensor carpi radialis longus, and the lateral part of the Brachialis.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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| Nerves of upper limbs (primarily): the brachial plexus |
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| supraclavicular: dorsal scapular - suprascapular - to the subclavius - long thoracic
infraclavicular: lateral cord: musculocutaneous (lateral cutaneous of forearm) - lateral pectoral - lateral head of median (anterior interosseous, palmar, common palmar digital, proper palmar digital) medial cord: medial pectoral - medial cutaneous of forearm - medial cutaneous of arm - ulnar (muscular branches, dorsal branch, palmar branch, superficial branch, deep branch) - medial head of median posterior cord: subscapular (upper, lower) - thoracodorsal - axillary (superior lateral cutaneous of arm) - radial (muscular, inferior lateral cutaneous of arm, posterior cutaneous of arm, posterior cutaneous of forearm, superficial branch, deep branch, posterior interosseous) |
