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28 Sep 2019
In each of the following situations, indicate whether theproposed answers are true or false. In each case explain yourreasoning.
In an experiment, a physiologist was able to destroy some butnot all of the motor neurons to a specific skeletal muscle. Givenwhat you know about motor units, what is the result of thisaction?
T/F ?a.??There is no effect because motor neurons are redundant;multiple neurons innervate each muscle fiber as backup.Explain.
T/F b. The muscle will, in general, contract more weakly becausefewer fibers are capable of contracting. Explain.
T/F c. The ability of the muscle to contract will not changebecause the electrical potential will spread from stimulated fibersto adjacent fibers. Explain.
In each of the following situations, indicate whether theproposed answers are true or false. In each case explain yourreasoning.
In an experiment, a physiologist was able to destroy some butnot all of the motor neurons to a specific skeletal muscle. Givenwhat you know about motor units, what is the result of thisaction?
T/F ?a.??There is no effect because motor neurons are redundant;multiple neurons innervate each muscle fiber as backup.Explain.
T/F b. The muscle will, in general, contract more weakly becausefewer fibers are capable of contracting. Explain.
T/F c. The ability of the muscle to contract will not changebecause the electrical potential will spread from stimulated fibersto adjacent fibers. Explain.
Irving HeathcoteLv2
28 Sep 2019