external carotid artery: the branch of the carotid artery that supplies blood to the face and tongue and external parts of the head
carotid artery: either of two major arteries of the neck and head; branches from the aorta
inclusion body myositis: myositis characterized by weakness of limb muscles (especially the thighs and wrists and fingers); sometimes involves swallowing muscles; onset after 50 and slowly progressive; seen more often in men than in women