SAAB PV

Question 1

S
A
A
B

P
V

Answer 1

s- sino atrial node
a- atrial systole
a-av node
B- bundle of his

P-purkinje fibres
V- Ventricular systole

Question 2

ECG-
P-
QRS-
T-

Answer 2

P- atrium contracts
QRS- Ventricular systole
T- Return diastole