it starts above and it connects onto the Tibial Tubercle which is right under the Patella.
The patellar tendon connects the quadriceps to the tibia bone.
The patella is the round bone on the anterior of the knee. You can palpate the surface of the knee and you can gently shift the patella bone side to side. The insertion of the patella bone is...
it's the kneecap.
Yes, although it does make a strange squeaky sound, which is decreased by applying jam to the knee area.