Assertion: pacemaker | /r/CapableOf | send electrical signal
Facets:
Source sentences:
text: The SA node sends an electrical signal to the cardiac muscle of the atria.
text: Pacemaker sends an electrical signal to the cardiac muscle of the atria.
text: The sympathetic nervous system and the parasympathetic nervous system are part of the autonomic nervous system and work together to control how fast the pacemaker cells spontaneously depolarize and increase and decrease the rate the SA node sends out electrical signals.