Force generated by the muscles is used to carry out movement through joints, where the joint acts as

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load

effort

resistance

fulcrum

answer is D.

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Detailed Solution

Force generated by the muscles is used to carry out movement through joints, where the joint acts as a fulcrum. A lever system consists of three main components: (1) Fulcrum is the fixed point around which the lever system pivots. In the case of joint movement, the joint serves as the fulcrum, providing a stable point of rotation. (2) Effort is the force applied to the lever system to produce movement. In the context of muscles and joints, the effort is the force generated by the muscles. (3) Load or resistance opposes the movement produced by the effort. In the context of joint movement, the load can be the weight of the body part being moved or any external resistance.

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