Cats can purr for various reasons, using the soft rumble as a way of communicating and as a form of self-soothing or even healing. This is why cats will often purr when they're injured, or after a stressful event.
to not have sexaul affaires with the person, if very contagious you should not touch the person ....
HOPE THIS HELPS :-)
I think it's hinge I'm not so sure though :/
Answer:
The hip bone, the os coxae,
Explanation: