sarcoplasmic reticulum

noun Cell Biology.
  1. a system of membrane-bound tubules that surrounds muscle fibrils, releasing calcium ions during contraction and absorbing them during relaxation.

Origin of sarcoplasmic reticulum

First recorded in 1950–55; sarco- + plasm(a) + -ic Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

sarcoplasmic reticulum in Medicine

sarcoplasmic reticulum

  1. The endoplasmic reticulum found in striated muscle fibers.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.