Minggu, 26 Desember 2010

Anatomy: Cutaneous Nerves and Superficial Veins of the Shoulder and Arm

Cutaneous Nerves - Upper Limb


Nerves

Supraclavicular nerve

  • Arises from the cervical plexus (C3, C4) and innervates the skin over the upper pectoral, deltoid, and outer trapezius areas.
Medial brachial cutaneous nerve
  • Arises from the medial cord of the brachial plexus and innervates the medial side of the arm.
Medial antebrachial cutaneous nerve
  • Arises from the medial cord of the brachial plexus and innervates the medial side of the forearm.
Lateral brachial cutaneous nerve
  • Arises from the axillary nerve and innervates the lateral side of the arm.
Lateral antebrachial cutaneous nerve
  • Arises from the musculocutaneous nerve and innervates the lateral side of the forearm.
Posterior brachial and antebrachial cutaneous nerves
  • Arise from the radial nerve and innervate the posterior sides of the arm and forearm, respectively.
Intercostobrachial nerve
  • Is the lateral cutaneous branch of the second intercostal nerve and emerges from the second intercostal space by piercing the intercostal and serratus anterior muscles.
  • May communicate with the medial brachial cutaneous nerve.

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