In a muscle fiber, calcium ions are stored in the:
A)sarcolemma
B)sarcomere
C)myosin filaments
D)sarcoplasmic reticulum

Question

Quizplus · Accepted Answer

Calcium ions are stored in the sarcoplasmic reticulum, a specialized organelle within the muscle fiber that plays a crucial role in muscle contraction. When a muscle fiber is stimulated, calcium ions are released from the sarcoplasmic reticulum into the cytoplasm, which triggers a series of events leading to muscle contraction.

In a Muscle Fiber, Calcium Ions Are Stored in The