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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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dolby dolby
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8 years ago
What is occurring during this period of a muscle twitch contraction?

A)   The muscle action potential sweeps along the sarcolemma and calcium ions are released from the sarcoplasmic reticulum.
B)   Crossbridge attachments form, and repetitive power strokes occur.
C)   The level of Ca2+ in the sarcoplasm decreases, because it is being actively transported back into the sarcoplasmic reticulum and bound to calsequestrin.
D)   The muscle fiber relaxes as myosin heads detach from the actin filaments.
E)   Acetylcholinesterase is preventing the ligand gated channels at the motor end plate from binding to ACh.
Textbook 
Anatomy and Physiology: From Science to Life

Anatomy and Physiology: From Science to Life


Edition: 2nd
Authors:
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randis_oddyrandis_oddy
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dolby Author
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8 years ago
Yes, this is correct.
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