L14 - Advanced cardiac physiology Flashcards
1
Q
SA node
What modulates SA node discharge and rate?
A
Specialised for initiating impulses and conducting them rapidly through the heart.
Stimulation by beta adrenergic and muscarinic receptors by neurotransmitters modulate SA node discharge and rate.
2
Q
Bachmann’s bundle
A
Large muscle that appears to conduct cardiac impulse from RA to LA.