cardiac cycle Flashcards
1
Q
2 nodal tissues of the heart
A
conductive fibres and the myocardium itself
2
Q
SA firing rate modified by __
A
autonomic imput
3
Q
conducting pathway
A
SA node –> AV node –> AV bundle of His –> intraventricular septum –> right and left branches –> AP from His to purkinje fibres –> contraction from apex to base
4
Q
ventricular filling
A
AV valves open, semilunar close
5
Q
atrial contraction
A
AV valves opened, semilunar closed
6
Q
Isovolumetric ventricular contraction
A
AV close, semilunar are closed
7
Q
ventricular ejection
A
AV valves closed, semilunar opened
8
Q
Isovolumetric ventricular relaxation
A
V valves are closed and semilunar valves close
