Axi, Ipsi & More

More interesting definitions from the fitness directory:

     Axilla: The armpit.

     Idiopathic: Cause of injury unknown.

     Iliac: Refers to the area of the hip bones on either side of the body.

     Ipsilateral: Situated on the same side.

     Voluntary muscle: Skeletal muscle; muscle under one's control.

Really, curious about that last one.