In skeletal muscle, where is the majority of calcium stored during the relaxed state?
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Correct answer: In the sarcoplasmic reticulum
The sarcoplasmic reticulum is a specialized smooth ER that serves as a reservoir for calcium ions. The terminal cisternae are the specific dilated regions that sit adjacent to T-tubules to form triads.
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More Muscle Contraction questions
- What structural change occurs to the H-zone and I-band during a full muscle contraction?
- The 'Power Stroke' of the cross-bridge cycle is triggered by which of the following events?
- What is the function of the T-tubules (Transverse Tubules) in skeletal muscle histology?
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