Assertion: cardiac muscle's t tubule | /r/CapableOf | help to spread electrical excitation
Facets:
value: into the cell
type: TRANSITIVE-OBJECT
value: rapidly
type: MANNER
Source sentences:
text: The T tubules help to spread electrical excitation rapidly into the cell and they run close to the sarcoplasmic reticulum (SR) in which Ca++ ions are stored.