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| To make a muscle contract more strongly, the nervous system can activate more motor units. This process is called |
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| The _______ is a depression in the sarcolemma that receives a motor nerve ending |
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| before a muscle fiber can contract, ATP must bind to |
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| Before a muscle can contract, Ca2+ must bind to |
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| Skeletal muscle fibers have ______, where as smooth muscle cells do not |
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| Smooth muscle cells have _____, whereas skeletal muscle fibers do not |
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| ACh receptors are found mainly in |
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| single-unit smooth muscle cells can stimulate each other because they have |
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| A person with a high VO2 max |
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| experiences less muscle fatigue during exercise than someone with a low VO2max |
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| slow oxidative fibers have all of the following EXCEPT |
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