The remarkable human knee is one of the most complex and important joints in the human body. It is built to simultaneously embody the attributes of strength and flexibility and is put to near constant use to facilitate the performance of a myriad of actions. Your knee has to be sturdy enough to support the impact of your upper body weight while walking or running, yet flexible enough for you to fold yourself into the lotus position for a meditation session for example. The knee joint is mostly made up of components like bone, muscle, ligaments, tendons, cartilage… and each of the component parts of the knee serves a distinct function. The bones of the knee joint provide support, the surrounding muscles furnish the human with the ability to control his/her movements, the ligaments and tendons within the knee joint provide stability, and the cartilage provides cushioning to absorb the shock from the constant pounding associated with daily movement and exercise. When healthy, the components of the knee work together so that we can walk, run, jump, and change direction instinctively. As a matter of fact, the knee works so well when healthy, that many of us do not fully appreciate its importance until something goes awry. I can say that with confidence because I for one certainly didn’t appreciate the benefit of having two perfectly functional knees until I injured one of them. Continue reading Anatomy of the human knee
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