Sarcoplasmic reticulum (SR): Ca2+ collection T system / T tubule / transverse tubule: on terminal cisternae of SR 1 T tubule & 2 terminal cisternae: triad (middle between Aband & I-band) * Importance for muscle relaxation
Sarcoplasmic reticulum (SR): Ca2+ collection T system / T tubule / transverse tubule: on terminalcisternae of SR 1 T tubule & 2 terminal cisternae: triad (middle between Aband& I-band)* Importance for muscle relaxation