The intercostobrachial nerve typically innervates the floor and the skin of the axilla and the adjacent part of the medial side of the upper limb
The typical intercostobrachial innervation area is marked with magenta. Supraclavicular nerve (yellow), axillary nerve (blue), medial brachial cutaneous nerve (brown), radial nerve (pink), medial antebrachial nerve (red) Left is anterior, right is posterior
