MUSCLE
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What surrounds the myofibril and stores and releases calcium?
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Sarcolemma
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Sarcomere
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Perimysium
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Sarcoplasmic reticulum
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Explanation:
Detailed explanation-1: -The specialized smooth endoplasmic reticulum, called the sarcoplasmic reticulum (SR), stores, releases, and retrieves calcium ions (Ca++).
Detailed explanation-2: -Cross-linking agents induce rapid calcium release from skeletal muscle sarcoplasmic reticulum. A phosphorylated conformational state of the (Ca2+, Mg2+)-ATPase of fast skeletal muscle sarcoplasmic reticulum can mediate rapid Ca2+ release.
Detailed explanation-3: -When the muscle is stimulated, calcium ions are released from its store inside the sarcoplasmic reticulum, into the sarcoplasm (muscle ).
There is 1 question to complete.