If skeletal muscle fibers could store large quantities of adenosine triphosphate (ATP), how would you explain the change, if any, in our ability to run at top speed for a distance (or to perform any aerobic exercise)?

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Sixta KovacekLv2

4 Aug 2019

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Please help me answer the following two quesions:

1) Aerobic training will cause the following change in skeletal muscle?

a) increase number of muscle fibers

b) increase number of muscular synapses

c) increase vascularization of the muscle

d) increase number of somatic motor neurons

e) increase storage of calcium inside the muscle

2) If you increase the load on a muscle, what will happen to the muscle spindle?

a) It will fire more action potentials per second

b)It will fire fewer action potentials per second

c) It will increase the rate of ATP production per second in the muscle

d) It will decrease the rate of ATP production per second in the muscle

silverfrog343

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, ingeneral, contract more weakly because fewer fibers are capable ofcontracting.

Explain:

T/F c. The ability ofthe muscle to contract will not change because the electricalpotential will spread from stimulated fibers to adjacentfibers.

Explain:

pearscorpion256

In what ways has physical activity impacted your wellness in the past?

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What is a physical activity goal that you want to accomplish this semester? Use the SMART goal-setting format to write your goal below.

Below, write yourself an aerobic exercise prescription. Ideally this will be a plan that you can use now or in the future (if you are still deciding whether you want to incorporate aerobic exercise into your lifestyle). Include the following: How many days per week will you engage in aerobic exercise? What type of aerobic exercise will you do (more than one is okay)? What intensity of aerobic exercise will you do (more than one is okay)? How long will you engage in aerobic exercise at each bout (different times for each training session are okay)? How will you ensure the exercise bouts are enjoyable and optimally beneficial to your wellness?