PHYSIOLOGY
NEUROMUSCULAR JUNCTION TRANSMISSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A muscle will relax when excess calcium is brought back to the sarcoplasmic reticulum
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The sarcoplasmic reticulum releases calcium ions during muscle contraction and absorb them during relaxation.
Detailed explanation-2: -Calcium triggers contraction by reaction with regulatory proteins that in the absence of calcium prevent interaction of actin and myosin. Two different regulatory systems are found in different muscles.
There is 1 question to complete.