Quadriceps tendon
The quadriceps muscle goes over the patella. The patella is encased in the quadriceps tendon. This tendon inserts on the tibia at the tibial tuberosity. Other muscles from the thigh have tendons which go underneath the patella.
Sesamoid bones are also found occasionally at the metacarpophalangeal joints of the middle and ring fingers, at the interphalangeal joint of the thumb and at the distal interphalangeal joint of the index finger. In the lower extremity the largest sesamoid bone of the joints is the patella, developed in the tendon of the Quadriceps femoris.
quadriceps femoris
The patella: 1- Increases the lever arm of the quadriceps muscle in its function to extend the knee joint. 2- Redirect the forces exerted by the quadriceps muscle.
quadriceps :)
Bone spur
In the knee, the patella is found within the quadriceps tendon. This is the largest sesamoid bone in the human body.
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 quadricep ligament which attaches to the proximal end of the tibia. The origin of the patella is the quadricep tendon. The quadriceps consist of four muscles: rectus femoris, vastus intermedius, vastus medialis, and the vastus lateralis.
The two tendons that are attached to the patella are: the quadriceps tendon, which attaches above, and the patellar tendon, which attaches on the bottom
The patella, also known as the kneecap, is a sesamoid bone. Sesamoid bones are bones that are embedded within tendons and provide protection and mechanical advantage to that tendon. The patella is located within the quadriceps tendon and acts as a fulcrum to increase the leverage of the quadriceps muscles during knee extension.
The patella has a base which is the attachment for the quadriceps tendon and the apex (more pointed end) which is the attachment for the patellar ligament which attaches the patella to the tibia.
The patella serves to lengthen the extension moment at the knee by riding up the greater trochanter of the femur and lengthening the quadriceps tendon. It actually sits inside the tendon.