Science Fair Project Encyclopedia
Patella
The patella or kneecap is a thick, triangular bone which articulates with the femur and covers and protects the front of the knee joint. It develops from the tendon of the Quadriceps femoris muscle, which contracts to straighten the leg. The patella increases the leverage that the tendon can exert on the femur by increasing the angle at which it acts.
See also
11-30-2008 18:11:33
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details