True or false: The first motor units to be recruited upon stimulation are those

Question

True or false: The first motor units to be recruited upon stimulation are those containing high numbers of the largest fibers, which guarantees maximum tension development immediately upon skeletal muscle contraction. a. True b. False The graph to the right shows the force produced during a single isometric twitch contraction of a muscle, with the action potential occurring at t = 0. If we loaded this muscle with a 2 N weight, which of the following would be true? a. the force would plateau at 2 N of force b. the latent period would be

Explanation / Answer

1) True: for the development of maximum tension in skeletal muscles the involvement of high amount of fibers is required and hence it is a true statement.

2) d. the amount of force produced by the muscle would increase by 2 N, when there is a load applied on muscles the exact amount of energy is required for the muscles to act on it and hence when a load of 2N is applied the force produced also will increase by the same amount.

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