connecting branch of vessel supplies blood to scalp external carotid artery occipital artery SCTID:244219005 arteria occipitalis The occipital artery arises opposite the facial artery, its path is below the posterior belly of digastric to the occipital region. This artery supplies blood to the back of the scalp and sterno-mastoid muscles. Other muscles it supplies are deep muscles in the back and neck. [WP,unvetted]. Wikipedia:Occipital_artery FMA:49586 NCIT:C33194 UBERON:0001613 MA:0002009 artery muscle of neck branch of external carotid artery