Posterior cutaneous nerve of forearm
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| Nerve: Posterior cutaneous nerve of forearm | ||
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| Diagram of segmental distribution of the cutaneous nerves of the right upper extremity. Posterior view. ("Dors. antibrach. cutan." visible in red at center.) | ||
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| Diagram of segmental distribution of the cutaneous nerves of the right upper extremity. Anterior view. ("Dors. antibrach. cutan." visible in red at center.) | ||
| Latin | n. cutaneus antebrachii posterior, n. cutaneus antibrachii dorsalis | |
| Gray's | subject #210 944 | |
| From | radial nerve | |
| Dorlands/Elsevier | n_05/12565472 | |
The dorsal antibrachial cutaneous nerve (external cutaneous branch of musculospiral, posterior antebrachial cutaneous nerve, posterior cutaneous nerve of forearm) perforates the lateral head of the Triceps brachii at its attachment to the humerus.
The upper and smaller branch of the nerve passes to the front of the elbow, lying close to the cephalic vein, and supplies the skin of the lower half of the arm.
The lower branch pierces the deep fascia below the insertion of the Deltoideus, and descends along the lateral side of the arm and elbow, and then along the back of the forearm to the wrist, supplying the skin in its course, and joining, near its termination, with the dorsal branch of the lateral antibrachial cutaneous nerve.
[edit] See also
- Medial antibrachial cutaneous nerve
- Lateral antibrachial cutaneous nerve
- Posterior brachial cutaneous nerve
[edit] Additional images
 Cross-section through the middle of upper arm. |
 Cutaneous nerves of right upper extremity. Anterior view. |
 Cutaneous nerves of right upper extremity. Posterior view. |
[edit] External links
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 As such, some of the information contained herein may be outdated.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.
| 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) |
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