ELECTRICAL & MECHANICAL ACTIVITYIN THE MAMMALIAN HEART

MAMMALIAN CIRCULATION

Fig. 12.07

Fig. 12.14

Fig. 12.10

Fig. 12.09

Fig. 12.10

Fig. 12.14a

Fig. 12.10

AP’s of Cardiac Cells and AP’s of Cardiac Cells and EKGEKG

Fig. 12.11

Mechanical Properties

Cardiac Cycle:

1. Heart at rest: atrial and ventricular diastole

2. Atrial systole

3. Early ventricular contraction and first heart sound• isometric ventricular contraction

4. Ventricular Ejection

5. Ventricular Relaxation and the second heart sound

EDV

ESV