sarcoplasmic reticulum
noun
: the specialized endoplasmic reticulum of cardiac muscle and skeletal striated muscle that functions especially as a storage and release area for calcium
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When calcium enters heart (or cardiac) cells, more calcium is released from the sarcoplasmic reticulum—the primary storage and release site of calcium.
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Sara Hoffman, Verywell Health, 6 May 2026
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Sara Hoffman, Verywell Health, 6 May 2026
Cite this Entry
“Sarcoplasmic reticulum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sarcoplasmic%20reticulum. Accessed 11 May. 2026.
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