Sarcoplasmic reticulum
FINE RETICULAR NETWORK OF MEMBRANE-LIMITED ELEMENTS THAT PERVADES THE SARCOPLASM OF A MUSCLE CELL
Rough ER; Smooth ER; Rough endoplasmic reticulum; Smooth endoplasmic reticulum; Endoplasmic Reticulum; Rough er; Agranular endoplasmic reticulum; Ergastoplasm; Endoplasmatic reticulum; Endoplasmic reticulum, smooth; Endoplasmic reticulum, rough; Smooth er; Granular endoplasmic reticulum; Endoplasmic Reticula; Endoplasmic reticula; Cell parts that detox; Sarcoplasmatic reticulum; Smooth endoplasmatic recticulum; ER membrane; Sarcoplasmic Reticulum; Smooth Endoplasmic Reticulum; Sarcoplastic reticulum; Endoplasmic reticulum lumen; Smooth E/R; Soft endoplasmic reticulum
The sarcoplasmic reticulum (SR) is a membrane-bound structure found within muscle cells that is similar to the smooth endoplasmic reticulum in other cells. The main function of the SR is to store calcium ions (Ca2+).