The inner groins extend from the creases between the inner thighs and the perineum (the fleshy base of the pelvis). (yogajournal.com)
kumbha = pot (a traditional image of the human torso as a container for the breath with two «openings» at the throat and base of the pelvis) (yogajournal.com)
The pelvic floor is a group of muscles that sit at the base of the pelvis. (mindbodygreen.com)