in the sarcoplasmic reticulum of the myocardium , celular organell which function is to regulate the cytoplasmic concentration of calcium in contraction and relaxation , we have studied the effect of hypertonic solutions of sucrose between 1 and 6.96 times the normal tonicity in order to observe the behavior of the internal linked or free calcium of this structure , as well as to prove the hypothesis that hypertonic solutions encourage the calcium exit of the sarcoplasmatic reticulum with the resulting signs of contractures .
C0036226
sarcoplasmic reticulum
C0010834
cytoplasmic