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Anterior Cutaneous Branch of Subcostal Nerve (Right)
Nervous System

Anterior Cutaneous Branch of Subcostal Nerve (Right)

Ramus cutaneus anterior nervi subcostalis

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The anterior cutaneous branch arises as the terminal branch of the subcostal nerve.


As the terminal portion of the subcostal nerve pierces through the anterior rectus sheath, it becomes the anterior cutaneous branch.


The anterior cutaneous branches divide into medial and lateral branches that extend over the rectus sheath.

Supplied Structures & Function

The anterior cutaneous branch conveys sensory information from the skin of the anterior abdominal wall. See our dermatome map for cutaneous innervation.

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Subcostal Nerve

ScienceDirect image

The T12 nerve is actually a subcostal nerve that contributes branches to the iliohypogastric and ilioinguinal nerves.

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