Role Of Sarcoplasmic Reticulum In Calcium Storage And Muscle Contraction
Within skeletal muscle cells, the sarcoplasmic reticulum (SR) serves as the primary calcium storage organelle. This specialized endoplasmic reticulum network comprises longitudinal tubules and terminal cisternae, where calcium ions (Ca+2) are actively stored. Upon receiving a signal from T-tubules, the SR releases Ca+2 into the cytosol, initiating a series of events leading to muscle contraction….