|1.||Technical name: genu the joint of the human leg connecting the tibia and fibula with the femur and protected in front by the patellaRelated: genicular|
|2.||a. the area surrounding and above this joint|
|b. (modifier) reaching or covering the knee: knee breeches; knee socks|
|3.||a corresponding or similar part in other vertebrates|
|4.||the part of a garment that covers the knee|
|5.||the upper surface of a seated person's thigh: the child sat on her mother's knee|
|6.||anything resembling a knee in action, such as a device pivoted to allow one member angular movement in relation to another|
|7.||anything resembling a knee in shape, such as an angular bend in a pipe|
|8.||any of the hollow rounded protuberances that project upwards from the roots of the swamp cypress: thought to aid respiration in waterlogged soil|
|9.||bend the knee, bow the knee to kneel or submit|
|10.||bring someone to his knees to force someone into submission|
|11.||bring something to its knees to cause something to be in a weakened or impoverished state|
|—vb , knees, kneeing, kneed|
|12.||(tr) to strike, nudge, or push with the knee|
|[Old English cnēow; compare Old High German kneo, Old Norse knē, Latin genu]|
The joint between the thigh and the lower leg, formed by the articulation of the femur and the tibia and covered anteriorly by the patella.
The region of the leg that encloses and supports this joint.
hinge joint that is formed by the meeting of the thigh bone (femur) and the larger bone (tibia) of the lower leg. The knee is the largest joint in the body and has to sustain the greatest stresses, since it supports the entire weight of the body above it. Consequently, the rounded ends, or condyles, of the femur and tibia that meet at the knee are massive. The rounded ends of the tibia move forward and backward on the corresponding ends of the femur; the kneecap, or patella, rests upon the ends of the femur and serves to prevent the tibia from moving too far forward when the leg is bent. The articulating (meeting) surfaces of the femur and tibia condyles are very smooth and are separated by a slight gap. The femur and the tibia are held together at the joint by a complex system of ligaments that run from the condyles of one bone to the condyles of the other. The two bones' possible contact with each other is cushioned by a synovial membrane and by layers of cartilage on the surface of each condyle. The entire knee joint, including the kneecap, is enveloped in a capsular apparatus that is large enough to allow for the movement of the tibia and also allows the kneecap to swing up and down freely on the front surface of the femur.
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