Question: Worksheet Nerve stimulation of a muscle fiber Place the following steps in proper order by number…


Worksheet Nerve stimulation of a muscle fiber Place the following steps in proper order by numbering them 1-15 -Neurotransmitter released via exocytosis into synaptic cleft. Sarcomere shortens as Z lines approach each other. Binding sites on actin are exposed. Calcium is admitted into terminal bouton. Depolarization of motor neuron reaches terminal bouton. Calcium flows around myofibrils and bonds to troponin of thin filaments Stimulus occurs at the dendrite of a motor neuron, initiating depolarization. Depolarization wave progresses along the axolemma of the motor neuron Acetylcholine bonds to receptors on post-synaptic membrane (sarcolemma). T tubule depolarization causes sarcoplasmic reticulum to release calcium Sarcolemm Change in conformation of troponin causes positional shift in tropomyosin Cross-bridges form between myosin heads of thick filaments and actin of thin filaments. ACIH bonding stimulates opening of Na+ gates in motor end plate of muscle fiber. ATP is used to shift cross-bridges, sliding thick and thin filaments into greater overlap. a depolarizes and wave of electrical activity progresses down T tubules.

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Worksheet Nerve stimulation of a muscle fiber Place the following steps in proper order by numbering them 1-15 -Neurotransmitter released via exocytosis into synaptic cleft. Sarcomere shortens as Z lines approach each other. Binding sites on actin are exposed. Calcium is admitted into terminal bouton. Depolarization of motor neuron reaches terminal bouton. Calcium flows around myofibrils and bonds to troponin of thin filaments Stimulus occurs at the dendrite of a motor neuron, initiating depolarization. Depolarization wave progresses along the axolemma of the motor neuron Acetylcholine bonds to receptors on post-synaptic membrane (sarcolemma). T tubule depolarization causes sarcoplasmic reticulum to release calcium Sarcolemm Change in conformation of troponin causes positional shift in tropomyosin Cross-bridges form between myosin heads of thick filaments and actin of thin filaments. ACIH bonding stimulates opening of Na+ gates in motor end plate of muscle fiber. ATP is used to shift cross-bridges, sliding thick and thin filaments into greater overlap. a depolarizes and wave of electrical activity progresses down T tubules.

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