Intercostobrachial Nerve

Description

Intercostalbrahcial nerve

The Intercostalbrahcial nerve is seen labeled in brown

Name

• Intercostal Brachial Nerve
• Intercostobrachial Nerve
• Lateral cutaneous branch of the second intercostal nerve
• Tickle nerve
• Intercostal brachial nerve
• Second intercostal nerve lateral cutaneous branch
• Cutaneous branch of the second intercostal nerve
• T2 cutaneous nerve of the arm

General

• Lateral, cutaneous branch of the second intercostal nerve
• Supplies sensation to the axilla

Gross Anatomy

• Leaves the second intercostal space at the midaxillary line
• Pierces the serratus anterior muscle as it enters the subcutaneous tissue of the axilla

Variant Anatomy

• Can branch off the third intercostal nerve
• May join the medial cutaneous nerve of the arm to supply the skin of the medial arm

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Clinical Significance

• Can be injured during axillary surgery

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See Also

• Nerve Anatomy Main
• Thoracic Anatomy Main
• Shoulder Anatomy Main

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