0
The ischium is an irregular bone located in the pelvis.
The hip bone, is formed by the fusion of the ilium, the ischium, and the pubis, which occurs by the end of the teenage years.
The coxal bone parts include the ilium, ischium and pubis
The ilium, ischium, and pubis fuse to form the hip bone or os coxa.
when you place your hands on your hips, you are actually touching your ischium