Medial Cutaneous Nerve of Forearm

Description

The medial cutaneous nerve is seen labeled in green

Cutaneous nerves of the anterior forearm

Name

• Medial Cutaneous Nerve of Forearm
• Medial antebrachial cutaneous nerve

General

• Sensory branch of the medial cord of the brachial plexus
• Supplies sensory innervation to the skin of the medial forearm
• Also supplies skin overlying the olecranon

Anatomic Course

• Originates from the anterior rami of spinal nerves C8-T1
• After arising from the brachial plexus, it travels down the medial aspect of the upper arm
• Courses along with the ulnar nerve
• Pierces the deep fascia with the basilic vein to enter the subcutaneous space

Branches

• Anterior/volar: crosses anteriorly over the basilic vein
  • Descends down anteromedial aspect of the forearm
• Posterior/ulnar: follows medial border of the basilic vein
  • Courses along the posteromedial aspect of the forearm

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Clinical Significance

• Needs to be updated

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See Also

• Nerve Anatomy Main
• Forearm Anatomy Main
• Forearm Pain Main
• Physical Exam Elbow

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