There are four known forces that are involved in evolution:

1)mutation,

2) genetic drift

3) gene flow or migration

4) selection.

TLS Online TPP Program

#Id: 5317

#Unit 7. System Physiology – Animal

TLS Online TPP Program

#Id: 5318

#Unit 7. System Physiology – Animal

Reduced Ventricular

Ejection Ventricular pressure falls because the ventricles are no longer contracting.

TLS Online TPP Program

#Id: 5319

#Unit 7. System Physiology – Animal

Reduced Ventricular Ejection

Because the aortic valve is still open, blood continues to be ejected from the left ventricle into the aorta, albeit at a reduced rate.

TLS Online TPP Program

#Id: 5320

#Unit 7. System Physiology – Animal

Reduced Ventricular Ejection

Left atrial pressure continues to increase as blood returns to the left heart from the lungs.

TLS Online TPP Program

#Id: 5321

#Unit 7. System Physiology – Animal

Reduced Ventricular Ejection

the ventricles begin to repolarize, which is marked by the beginning of the T wave on the ECG.

TLS Online TPP Program

#Id: 5322

#Unit 7. System Physiology – Animal

Isovolumetric Ventricular Relaxation

Left ventricle is relaxed

Left ventricular pressure decreases