Definition of sarcoplasmic in US English:

sarcoplasmic

adjective

Physiology
  • See sarcoplasm

    • ‘The sarcoplasmic membrane returns to its resting electrical potential (about 60 mV more positive outside), as does the entire T tubule system and the SR membrane.’
    • ‘It is this cAMP that activates cAMP-dependent protein kinase, or PKA, that phosphorylates various cardiac ion channels in the sarcolemma and within the sarcoplasmic reticulum.’
    • ‘Increased cAMP in vascular smooth muscle causes an increase in ionized calcium uptake by the sarcoplasmic reticulum, leaving little ionized calcium to facilitate contraction and resulting in smooth muscle relaxation.’
    • ‘Second, there seems to be no significant anisotropy in the sarcoplasmic diffusion of proteins.’
    • ‘Interestingly, in both ventricles myocytes adjacent to the adipose tissue showed multiple sarcoplasmic vacuoles.’

Pronunciation

sarcoplasmic

/ˌsärkəˈplazmik/