innervates branching part of median nerve arm nerve palmar branch of median nerve UBERON:0016430 palmar branch of anterior interosseous nerve ramus palmaris nervus interossei antebrachii anterior The palmar branch of the median nerve is a branch of the median nerve which arises at the lower part of the forearm and innervates skin of proximal central palm and thenar eminence. FMA:44836 Wikipedia:Palmar_branch_of_the_median_nerve median nerve palmar branch palmar cutaneous branch of median nerve ramus palmaris (nervus medianus) thenar eminence