Individual muscle fibers obey the all or non-law true or false
Added by Frederick A.
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The all-or-nothing law states that when a muscle fiber is stimulated to contract, it will either contract fully or not at all. There is no partial contraction of an individual muscle fiber. Show more…
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Assertion: Muscle as a whole doesn't obey all or none law. Reason: Each muscle fibre contracts maximally whenever it contracts.
44. The all or none principle refers to: a. That the strength of muscle contraction is independent of the strength of a stimulus b. That the strength of muscle contraction is dependent on the strength of a stimulus c. That the strength of muscle contraction determines the strength of a stimulus d. That the strength of a stimulus depends on the strength of a muscle contraction. 45. Type I muscle fibers: a. Are not highly oxidative b. Have a slow maximal shortening velocity c. Have a low number of mitochondria d. Have a lower capillary density than type II muscle fibers. 46. The Henneman's size principle describes: a. The relationship between stroke volume and heart rate b. The change in the partial pressures of gases with altitude c. The recruitment of muscle fibers d. The manner in which action potentials are directed throughout the body. 47. The mean proportion of type II muscle fibers is: a. Higher in males than females b. Lower in males than females c. Similar in males and females d. Only influenced by gender in children.
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