medial cutaneous nerve of arm


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me·di·al cu·ta·ne·ous nerve of arm

[TA]
arises from the medial cord of the brachial plexus, unites in the axilla with the lateral cutaneous branch of the second intercostal nerve, and supplies the skin of the medial side of the arm.
Farlex Partner Medical Dictionary © Farlex 2012

me·di·al cu·ta·ne·ous nerve of arm

(mē'dē-ăl kyū-tā'nē-ŭs nĕrv ahrm) [TA]
Arises from the medial cord of the brachial plexus, unites in the axilla with the lateral cutaneous branch of the second intercostal nerve, and supplies the skin of the medial side of the arm.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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References in periodicals archive ?
We found the undivided lateral cutaneous branch of 2nd intercostal nerve piercing the second intercostal space at midaxillary plane, running along the base of axilla to reach the upper and medial part of arm where they join with medial cutaneous nerve of arm on each side in 29 cadavers out of 40 adult embalmed cadavers.
The upper branch passed along the base of axilla, then left the axilla by passing through lower triangular space and finally joined with posterior cutaneous nerve of arm on each side whereas the lower branch passed along the base of axilla to reach the upper and medial part of arm where they join with medial cutaneous nerve of arm on each side.
The upper branch of 1st intercostobrachial nerve passed along the base of axilla, then left the axilla by passing through lower triangular space and finally joined with posterior cutaneous nerve of arm on each side whereas the lower branch passed along the base of axilla to reach the upper and medial part of arm where they join with medial cutaneous nerve of arm on each side.
The 1st intercostobrachial nerve joined with 2nd one to form a single trunk which passed along the base of axilla and reached the upper and medial part of arm to join with medial cutaneous nerve of arm on each side.
It crosses the axilla to the medial side of arm, joins with a branch of medial cutaneous nerve of arm, pierces the deep fascia and supplies the skin of upper half of the posterior and medial aspects of arm and connecting with the posterior cutaneous nerve of radial nerve.
The first one (T2) divided into upper and lower branches to join with posterior cutaneous nerve of arm and medial cutaneous nerve of arm respectively whereas the second one (T3) originated as a single trunk and joined with medial cutaneous nerve of arm (Fig.1).
When performing an interscalene block, the dermatomes of the lower trunk may be missed (ulnar nerve, medial cutaneous nerve of forearm and medial cutaneous nerve of arm).

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