Medial brachial cutaneous nerve

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Autonomous zones of the arm, that of the medial cutaneous nerve, are marked in light yellow

The nervus cutaneus brachii medialis ("inner cutaneous nerve of the upper arm ", Wrisberg nerve) is the smallest nerve of the arm plexus ( plexus brachialis ) in humans. It receives nerve fibers of the 8th cervical and first thoracic nerves (see also spinal nerve ). It pulls through the armpit and lies against the armpit vein ( vena axillaris ) and has connections with the intercostobrachial nerve . He then pulls medial to the brachial artery ( arteria brachialis ) to the center of the upper arm, the upper arm where it fascia and branched pierced into the skin of the upper arm lower third. The nervus cutaneus brachii medialis supplies a strip-shaped skin area on the elbow-side inner surface of the upper arm up to the elbow , which represents its autonomous area.

literature

  • Martin Trepel: Neuroanatomy. Structure and function. 3rd revised edition. Urban & Fischer, Munich et al. 2004, ISBN 3-437-41297-3 .