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Because your knee and elbow have a hing joint so it moves like a door, but if it was a ball in socket joint like in your shoulder you would be able to rotate it like a 360
"It bends when you need it too. If we did not have that then you wouldn't be able to walk."what.
knee
your thigh is the part above the knee the leg part is below the knee hope I helped
No, you should not straighten your leg after a knee subluxation as this action could further hurt your knee joint.
The hamstrings cross and act upon two joints - the hip and the knee. They extend the hip, flex the knee and rotate the lower leg inward when the knee is bent. The hamstrings also extends the hip as when beginning to walk; both short and long hamstring heads flex the knee and outwardly rotates the lower leg when the knee is bent. The hamstrings play a crucial role in many daily activities, such as, walking, running, jumping, and controlling some movement in the trunk.
No, but the knee is.
Your knee allows you to walk and bend your leg.
In your KNEE JOINT.
knee
The muscle that contracts when the leg is extended at the knee is call the gastrocnemius muscle
the knee that you put under your other leg