part of part of pectoral girdle region axilla arm pit underarm CALOHA:TS-2208 NCIT:C12674 Wikipedia:Axilla The axilla is the area directly under the joint where the forelimb connects to the shoulder. armpit EFO:0001395 MESH:D001365 SCTID:362732006 armpits FMA:24864 axillary region UBERON:0009472 oxter galen:Axilla axillae axillary region external soft tissue zone