Labels:ball and socket joint | bannister | book | bulletin board | earth | ligament | sky | toothbrush | trade name | vase OCR: UPPER LEG BONE YOUR UPPER as the LEG femur, BONE IS the Neck of femur known longest, heaviest, and strongest bone in your body. It has strong enough support your Head of end fem ur that fits into the body stand ding, weig ht walking, whether or you running. are socket Rounded of the pelvis (hip bone) At its top end, the femur forms ball -and- -socket joint with the pelvis (hip bone). which allows Inside a bone mov vement in any direction. At its lower end. it forms hinge joint with the low er leg bones, which allows the knee to bend Shaft of bone Patella (kneecap) Triangular bone lying T front of the joint betw reen the femur and the tibia (shin bone) VOUR standing movement