Corn and bean seedlings grown in the light or the dark

TLS Online TPP Program

#Id: 5324

#Unit 7. System Physiology – Animal

Isovolumetric Ventricular Relaxation

Closure of aortic valve producing the second heart sound (S2).

TLS Online TPP Program

#Id: 5325

#Unit 7. System Physiology – Animal

Isovolumetric Ventricular Relaxation

Because all valves are closed again, ventricular volume is constant.

TLS Online TPP Program

#Id: 5326

#Unit 7. System Physiology – Animal

TLS Online TPP Program

#Id: 5327

#Unit 7. System Physiology – Animal

Isovolumetric Ventricular Relaxation

begins after the ventricles are fully repolarized, marked by the end of the T wave on the ECG.

TLS Online TPP Program

#Id: 5328

#Unit 7. System Physiology – Animal

Rapid Ventricular Filling

ventricular pressure falls to its lowest level (below atrial pressure), the AV valve opens.

TLS Online TPP Program

#Id: 5329

#Unit 7. System Physiology – Animal

Rapid Ventricular Filling

Ventricular pressure remains low, because the ventricle is still relaxed and compliant.