The most important factor in decreasing the intracellular concentration of calcium ion after contractionis

Question

Quizplus · Accepted Answer

Active transport of calcium into the sarcoplasmic reticulum is the most important factor in decreasing the intracellular concentration of calcium ion after contraction. This process involves the calcium ATPase pump, which pumps calcium ions from the cytoplasm into the terminal cisternae of the sarcoplasmic reticulum, where calcium can be stored and released for future contractions. Other factors such as diffusion of calcium out of the cell and active transport of calcium across the sarcolemma may contribute to decreasing intracellular calcium concentration but are not as important as active transport of calcium into the sarcoplasmic reticulum.

The Most Important Factor in Decreasing the Intracellular Concentration of Calcium