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'''Cutaneous nerve of arm'''

[[File:Gray808.png|thumb|right|Cutaneous nerves of the right arm. Anterior view.]]

The '''Cutaneous nerve of arm''' is a nerve in the human body that provides sensation to the skin of the arm. It is part of the [[peripheral nervous system]] and originates from the [[brachial plexus]].

==Anatomy==

The cutaneous nerve of the arm is divided into two main branches: the [[medial cutaneous nerve of arm]] and the [[posterior cutaneous nerve of arm]]. These nerves are responsible for transmitting sensory information from the skin of the arm to the [[central nervous system]].

===Medial cutaneous nerve of arm===

The medial cutaneous nerve of arm originates from the [[medial cord]] of the brachial plexus, with roots from the eighth cervical and first thoracic nerves. It provides sensation to the medial aspect of the arm.

===Posterior cutaneous nerve of arm===

The posterior cutaneous nerve of arm, also known as the dorsal cutaneous nerve, originates from the [[radial nerve]]. It provides sensation to the posterior aspect of the arm.

==Clinical significance==

Damage to the cutaneous nerves of the arm can result in a loss of sensation in the affected area. This can occur as a result of trauma, surgery, or certain medical conditions such as [[diabetes]] or [[peripheral neuropathy]].

==See also==

* [[Nervous system]]
* [[Sensory nerve]]
* [[Dermatome (anatomy)]]

==References==

<references />

{{anatomy-stub}}

[[Category:Peripheral nervous system]]
[[Category:Nerves of the upper limb]]

Cutaneous nerve of arm - Revision history

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