kneecap

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kneecap

(patella), saucer-shaped bone at the front of the knee joint; it protects the ends of the femur, or thighbone, and the tibia, the large bone of the foreleg. The kneecap is embedded in the tendon tissue of the quadriceps femoris, a large thigh muscle. As the leg bends and straightens, the kneecap glides up and down in a groove of the femur. Dislocation of the kneecap is a common athletic injury, occurring when stress on the powerful extensor muscles that straighten the leg pulls the kneecap to one side. See skeletonskeleton,
in anatomy, the stiff supportive framework of the body. The two basic types of skeleton found among animals are the exoskeleton and the endoskeleton. The shell of the clam is an exoskeleton composed primarily of calcium carbonate.
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kneecap

[′nē‚kap]
(anatomy)
References in periodicals archive ?
Consider purchasing a compression brace such as a Cho-Pat band that can be placed around the patellar tendon to offset the shock absorption of the kneecap.
In patellar luxation, the kneecap dislocates because the groove in which it rests is too shallow, or the muscles at the front of the leg--the quadriceps --pull the patella toward the inside of the knee.
He said: "I tried to protect my calf by generating more power from my quads and they snapped the tendons - basically my muscles were too strong for the tendons and ripped them from my kneecap.
The kneecap (patella) has to be more robust because the knee joint bears the weight of the body - without a patella we would walk with straight, stiff legs - and because the knee bends forward, making it more vulnerable to damage.
The syndrome, also known as runner's knee, is usually caused by improper tracking of the kneecap in the patellofemoral groove.
In many cases of PFS, a lateral-view x-ray will show that the kneecap rides high ("patella alta").
What they should remember, however, is that tomorrow they, or their children or parents, may be next to be carried into casualty with their kneecaps in a plastic bag.
QMY 15-year-old son, who enjoys most sports, is finding his ability is increasingly limited by pain below both his kneecaps.
It was still a successful outing for her, especially considering that she had to miss the summer 1999 Junior Nationals because of a problem she has with her kneecaps.
Every beginning thrower must learn how to control the torso from kneecaps to chest
However, individuals with the variant gene shunted proportionately more of their stored lead into the spongier trabecular bone (of kneecaps and vertebrae, for instance) than did those with the normal gene.
The 45-year-old victim - dressed in a white forensic suit- is believed to have been held for two days before being blasted in the kneecaps.