Step 1 : Introduction to the question "What is the proper medical term for the armpit?"
Tucked away in that damp crevice between your arm and torso, the armpit—a.k.a. the axilla— is often the source of unpleasant odors. The axilla or armpit, is the underside of the shoulder joint, and is among the warmest areas of the body. It also provides the under-arm sweat gland. In humans, the formation of body odor happens mostly in the axillary region. The contents of the axilla include the axillary vein and artery, as well as the brachial plexus, lymph nodes and fat. The underarm can be a ticklish area, due to the number of nerves it contains.
