[TA] the upper rounded extremity fitting into the glenoid cavity of the scapula. Synonym(s): caput humeri [TA]
head of hu·mer·us
(hed hyū'mĕr-ŭs) [TA] The rounded extremity at the proximal end of the humerus; articulates with the glenoid cavity of the scapula Synonym(s): caput humeri [TA] .