You'll find significant blood vessels passing in the space at the rear of the knee (generally known as the popliteal Place). The big muscles of your thigh go the knee. In the entrance of your thigh, the quadriceps muscles prolong the knee joint. Behind the thigh, the hamstring muscles flex https://www.theorthopaedicandpainpractice.com/what-is-an-anterior-cruciate-ligament-acl-injury/