Coloured MRI scan of human knee joint, side view

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Coloured MRI scan of human knee joint, side view

Knee joint. Coloured Magnetic Resonance Imaging (MRI) scan of a sagittal section through a human knee joint. Two bones (coloured blue) meet at the knee, forming a hinge-joint. At top is the femur (thigh-bone), which articulates with the tibia (shin-bone) at bottom. The patella or kneecap (red, located at upper left) is a protective bone at the front of the knee held in position by muscles and tendons. Two discs of protective cartilage cover the surfaces of the femur and tibia to reduce friction between these bones. The round bottom surface of the femur forms a narrow ridge that moves through a groove in the tibia. This allows hinge movement, with slight rotation

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Media ID 6419942

© GEOFF TOMPKINSON/SCIENCE PHOTO LIBRARY

Bones Femur Joint Knee Knee Cap Knee Joint Mri Scan Patella Tibia Hinge Joint

EDITORS COMMENTS
This print showcases a coloured MRI scan of the human knee joint, providing a detailed side view. The image highlights the intricate structure and functionality of this vital joint. Two bones, depicted in striking blue hues, elegantly meet at the knee to form a hinge-joint. At the top of the frame lies the femur or thigh-bone, which articulates with the tibia or shin-bone positioned at the bottom. A prominent feature captured in vibrant red is the patella or kneecap, situated towards the upper left corner. This protective bone safeguards the front of our knees and remains securely held in place by muscles and tendons. To ensure smooth movement between these bones, two discs composed of protective cartilage cover their surfaces. These discs play an essential role in reducing friction during motion within this weight-bearing joint. Notably, we can observe that as part of its design for flexibility and stability, there is a narrow ridge on the round bottom surface of femur that glides through a groove present in tibia. This mechanism enables hinge-like movements while allowing for slight rotation as well. Overall, this mesmerizing snapshot provides valuable insights into both normal anatomy and skeletal dynamics associated with our knee joints – an integral component contributing to our ability to walk, run and perform various physical activities effortlessly.

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