What Does the Intercostobrachial Nerves Do?

The intercostobrachial nerve (ICBN) is a cutaneous nerve that provides sensation to the lateral chest, medial aspect of the upper arm, and the axilla.

Is the intercostobrachial nerve motor or sensory?

The intercostobrachial nerve is a sensory nerve that runs through the axilla and innervates the skin of the axilla and upper medial aspect of the arm.

What are intercostal nerves?

The intercostal nerves emerge from the somatic nervous system and aid in the contraction of muscles as well as provide sensory information from the skin and parietal pleura. The intercostal nerves arise from the anterior rami of the thoracic spinal nerves from T1 to T11.