Lateral cutaneous nerve of forearm
|Nerve: Lateral cutaneous nerve of forearm|
|Diagram of segmental distribution of the cutaneous nerves of the right upper extremity. Anterior view. ("Lat. antebrach. cutan." visible in purple at center.)|
|Diagram of segmental distribution of the cutaneous nerves of the right upper extremity. Posterior view. ("Lat. antibrach. cutan." visible in purple at center.)|
|Latin||n. cutaneus antebrachii lateralis, n. cutaneus antebrachii cutaneous lateralis|
|Gray's||subject #210 936|
The lateral antebrachial cutaneous nerve (or lateral cutaneous nerve of forearm) (branch of musculocutaneous nerve, also sometimes spelled "antebrachial") passes behind the cephalic vein, and divides, opposite the elbow-joint, into a volar and a dorsal branch.
The volar branch (ramus volaris; anterior branch) descends along the radial border of the forearm to the wrist, and supplies the skin over the lateral half of its volar surface.
The nerve then passes downward to the ball of the thumb, where it ends in cutaneous filaments.
The dorsal branch (ramus dorsalis; posterior branch) descends, along the dorsal surface of the radial side of the forearm to the wrist.
It supplies the skin of the lower two-thirds of the dorso-lateral surface of the forearm, communicating with the superficial branch of the radial nerve and the dorsal antebrachial cutaneous branch of the radial.
- Medial cutaneous nerve of forearm
- Posterior cutaneous nerve of forearm
- Superior lateral cutaneous nerve of arm
- Duke Orthopedics lateral_antebrachial_cutaneous_nerve
- Norman/Georgetown lesson2superficveinsupperlimb, Norman/Georgetown lesson5nervesofpostforearm
- EatonHand ner-097
- SUNY Figs 06:03-08 - "Cutaneous nerves of the upper extremity."
- Hand kinesiology at UK nerves/lateralcutan.htm
- lateral+cutaneous+nerve+of+forearm at eMedicine Dictionary
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 As such, some of the information contained herein may be outdated.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 (C5-T1)
|Supraclavicular||root (dorsal scapular, long thoracic) - upper trunk (suprascapular, to the subclavius)|
|Infraclavicular: lateral cord||lateral pectoral
musculocutaneous (lateral cutaneous of forearm)median/lateral root: anterior interosseous - palmar - recurrent - common palmar digital (proper palmar digital)
|Infraclavicular: medial cord||medial pectoral median/medial root: see above|
|Infraclavicular: posterior cord||subscapular (upper, lower) • thoracodorsal radial: muscular - cutaneous (posterior of arm, inferior lateral of arm, posterior of forearm) - superficial (dorsal digital nerves) - deep (posterior interosseous)|
|Other||cutaneous innervation of the upper limbs|
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