axilla http://upload.wikimedia.org/wikipedia/commons/f/f2/Gray411.png arm pit underarm CALOHA:TS-2208 NCIT:C12674 The axilla is the area directly under the joint where the forelimb connects to the shoulder. armpit EFO:0001395 MESH:D001365 armpits FMA:24864 uberon axillary region axillary UBERON:0009472 axilla oxter galen:Axilla regio axillaris axillae axillary region UMLS:C0004454 external soft tissue zone