23. True or fabse: Force exerted by the same muscle can be made to vary a. True
ID: 3521236 • Letter: 2
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23. True or fabse: Force exerted by the same muscle can be made to vary a. True b. False 24. True or false: When a nueron enters a muscle it branches and each axon terminal supplies a single muscle fiber. a. true b. false 25.True or false: When a nueron is activated all the muscle fibers it supplies are stimulated to contract a. True b.False 26. Contractions with longer duration and greater tension can be achieved by repeated stimulation. of these best describes muscle fibers that has been restimulated after rest? a single twitch b.summation c.tetnus 27. Which of these describes muscle fibers that are restimulated before complete relaxation. a. Single twitch b. Summation c. Tetnus 28. Which of these describes muscle fibers stimulated so rapidly that it does not have time to relax at all. and a maximum sustained contraction occurs. a. Single twitch b. Summation c. Tetnus 29. Which of these describes the origin of bone? a. The end of the muscle attached to the more stationary part of the skeleton. b. The end attached to the skeletal part that moves. c. None of these 30.True or false: Isotonic -muscle tension remains constant as the muscle changes length. a. True b. False 31. True or false: Isometric- muscles are allowed to shorten, so tension is developed at constant muscle length a. True b. False 32. True or false: Muscles comprise the largest tissue in the human body and make up about 40% of male body weight and 32% female body weight. a. true b. falseExplanation / Answer
23. True or False. the force exerted by a muscle can be made to vary?
Answer: True- the force exerted by a muscle can be made to vary by varying the load.
24. True or False. When a neuron enters a muscle it branches and each axonal terminal supplies a single muscle fiber.
Answer: True
25. True or false. when a neuron is activated all the muscle fibers it supplies is stimulated to contract.
Answer: true - The motor unit is the motor nerve and all the muscle fibers it innervates.
26. Which of these best describe muscle fiber that has been restimulated after rest?
Answer: a. single twitch
27. which of these describe muscle fibers that are restimulated before complete relaxation?
Answer: b. summation
28. which of these describes muscle fibers stimulated so rapidly that it does not have time to relax at all and a maximum sustained contraction occurs.
Answer: c. tetanus
29. Which of these describe the origin of bone?
Answer: c. none of these
30. True or false. Isotonic- muscle tension remains constant so the muscle changes length.
Answer: True
31. true or false. isometric: muscles are allowed to shorten, so tension is developed at constant.
Answer: False - muscles are not allowed to shorten, so tension is developed at a constant length of the muscle.
32. true or false. muscle comprise the largest tissue in the human body and make up about 40% of male body weight and 32% of female body weight.
Answer: True
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