Femur

The femur is the thigh bone.

 

Anatomy of the femur in the knee joint

Only the lower  (distal) end of the femur forms part of the knee joint. Together with the plateau of the tibia, the bony ends are encased by the knee capsule so that the joint is water-tight.

femur from front rounded condyles of femur components of the femur in the knee joint
The femur from the front. The rounded femoral condyles within the knee joint. Key components of the femur within the knee joint.
Synonyms: 
thighbone
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Related Content

Knee bones from above

Simple illustrations to give a birds' eye view of the knee bones.

Knee bones from side

Bony anatomy of the knee, in simple terminology.

Knee bones from front (bent knee)

Brief introduction to the bony anatomy of the knee, with clear illustrations.

Knee anatomy intro

This page demonstrates the bones of the knee - femur, tibia, and patella. The shock-absorbing menisci fill the gap between the rounded ends of the femur bone and the flattened upper surface of the tibia bone. The cruciate ligaments act as a 'stay' to allow movement of the femur and tibia, without the movement being excessive.

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