Assertion: cardiac muscle's action potential | /r/Causes | the release of calcium
Facets:
value: from the sarcoplasmic reticulum
type: TRANSITIVE-OBJECT
value: from the contraction of sarcomeres
type: OTHER
value: from the sr
type: OTHER
Source sentences:
text: Action potential triggers the release of calcium from the SR and the contraction of sarcomeres.
text: An action potential not only triggers the release of calcium from the sarcoplasmic reticulum but also increases the permeability of the cell membrane to extracellular calcium ions.