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| Description: The inability to maintain force of contraction after prolonged activity Due to: Inadequate release of Ca2+ from SR Depletion of CP, oxygen, and nutrients Build up of lactic acid and ADP Insufficient release of ACh at NMJ Oxygen Consumption After Exercise Why do you continue to breathe heavily for a period of time after stopping exercise? Oxygen debt Replenish CP stores Convert lactate into pyruvate Reload O2 onto myoglobin Control of Muscle Tension A motor unit consists of a somatic motor neuron and the muscle fibers it innervates The strength of a contraction depends on how many motor units are activated Picture Stats: Views: 159 Filesize: 41.72kB Height: 570 Width: 692 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=40448 |