During activation of contraction in skeletal muscle, sarcoplasmic reticulum calcium -release channels open.
Units of the sarcoplasmic reticulum surround the contractile fibrils in the interior of cardiac muscle cells.
The arrival of an action potential in the interior of the cardiac muscle cell causes the release of calcium ions from the sarcoplasmic reticulum.
Studies of sarcoplasmic reticulum function have been undertaken using both isolated preparations, and the novel technique of permeabilised isolated myocytes.
Effects of boldine on mouse diaphragm and sarcoplasmic reticulum vesicles isolated from skeletal muscle.