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How do the blood cardiovascular respiratory and nervous systems contribute to muscle contraction?
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How do the blood cardiovascular respiratory and nervous systems contribute to muscle contraction?

User Jiyda Moussa
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Blood/CV system delivers oxygen and glucose needed for energy of muscle contraction. Respiratory system fills blood with oxygen to be sent to body. Nervous system is needed to initiate contraction by releasing acetylcholine at myoneural junction.
User Lord Grosse Jeanine
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