anatomical structure axilla http://upload.wikimedia.org/wikipedia/commons/f/f2/Gray411.png 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 axillary UBERON:0009472 axilla oxter galen:Axilla regio axillaris axillae axillary region UMLS:C0004454