Skip to main content

Unfortunately we don't fully support your browser. If you have the option to, please upgrade to a newer version or use Mozilla Firefox, Microsoft Edge, Google Chrome, or Safari 14 or newer. If you are unable to, and need support, please send us your feedback.

Elsevier
Publish with us
Lateral Cutaneous Branch of Subcostal Nerve (Left)
Nervous System

Lateral Cutaneous Branch of Subcostal Nerve (Left)

Ramus cutaneus lateralis nervi subcostalis

Read more

Origin

The lateral cutaneous branch of anterior ramus of twelfth thoracic nerve arises from the anterior ramus of the twelfth thoracic nerve (or subcostal nerve) roughly along the mid-axillary line.

Course

As the subcostal nerve (or anterior ramus of twelfth thoracic nerve) courses between the transversus abdominis and internal abdominal oblique, it gives off a lateral cutaneous branch. The lateral cutaneous branch pierces the internal and external abdominal oblique muscles and extends towards the iliac crest.

Branches

The lateral cutaneous branch further subdivides into anterior and posterior branches.

Supplied Structures & Function

The lateral cutaneous branch of the subcostal nerve (or anterior ramus of twelfth thoracic nerve) conveys sensory innervation from the skin overlying the anterior gluteal region. See our dermatome map for cutaneous innervation.

Learn more about this topic from other Elsevier products

Subcostal Nerve

ScienceDirect image

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

Explore on ScienceDirect(opens in new tab/window)

Complete Anatomy

The world's most advanced 3D anatomy platform

Complete Anatomy