Cutaneous nerve of forearm

Cutaneous nerves of the right forearm. Anterior view.

The Cutaneous nerve of the forearm is a nerve in the human body that provides sensation to the skin of the forearm. It is a branch of the brachial plexus, and it is divided into two main branches: the medial cutaneous nerve of the forearm and the lateral cutaneous nerve of the forearm.

Anatomy

The cutaneous nerve of the forearm originates from the brachial plexus, which is a network of nerves that sends signals from the spinal cord to the upper limb. The nerve travels down the arm and into the forearm, where it divides into the medial and lateral cutaneous nerves.

Medial cutaneous nerve of the forearm

The medial cutaneous nerve of the forearm, also known as the medial antebrachial cutaneous nerve, originates from the medial cord of the brachial plexus. It provides sensation to the skin on the medial (inner) side of the forearm.

Lateral cutaneous nerve of the forearm

The lateral cutaneous nerve of the forearm, also known as the lateral antebrachial cutaneous nerve, originates from the musculocutaneous nerve, a branch of the lateral cord of the brachial plexus. It provides sensation to the skin on the lateral (outer) side of the forearm.

Clinical significance

Damage to the cutaneous nerve of the forearm can result in a loss of sensation in the forearm. This can occur as a result of trauma, surgery, or certain medical conditions such as diabetes or peripheral neuropathy.

See also

• Nervous system
• Peripheral nerve
• Sensory nerve

References

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