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YA/L081 Human Bone Lever Classification Model
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The model consists of a sagittal section of the skull (including the mandible), a sagittal section of the 1-5th cervical spine, a lower segment of the tibia and fibula, talus, humerus, forearm bone, and hand bone (indicating the scaphoid bone, cephaloid bone, third metacarpal bone, and middle phalange). The above-mentioned bones are connected according to the type of bone lever, and labeled with the fulcrum, force point, and resistance point of the lever. The classification of human bone lever concepts and the transmission force of three types of bone levers can be observed The role of balancing force, saving effort, and increasing the amplitude and speed of movement.
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