What is the Site of Calcium Storage in a Relaxed

Question

What is the site of calcium storage in a relaxed skeletal muscle?
A) T tubule
B) Neuromuscular junction
C) Fascicle
D) Sarcoplasmic reticulum

Accepted Answer

The site of calcium storage in a relaxed skeletal muscle is the sarcoplasmic reticulum, which is a specialized type of endoplasmic reticulum found in muscle cells. When a muscle is stimulated to contract, calcium ions are released from the sarcoplasmic reticulum and bind to the protein troponin, which triggers the contraction process.