The knee is a hinge joint that moves the lower leg forward and backward. These motions are called flexion and extension; they are caused from the contraction of several leg muscles.
Original article and pictures take https://livestrong.com site
вторник, 30 мая 2017 г.
The knee is a hinge joint that moves the lower leg forward and backward. These motions are called flexion and extension; they are caused from the contraction of several leg muscles.
The knee is a hinge joint that moves the lower leg forward and backward. These motions are called flexion and extension; they are caused from the contraction of several leg muscles.
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