Sarcoplasmic-reticulum
[sahr-kuh-plaz-mik] /ˌsɑr kəˈplæz mɪk/
noun, Cell Biology.
1.
a system of membrane-bound tubules that surrounds muscle fibrils, releasing calcium ions during contraction and absorbing them during relaxation.
sarcoplasmic reticulum n.
The endoplasmic reticulum found in striated muscle fibers.
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