TIR1 recruits AUX/ IAA proteins to the SCF -TIR1 complex in an auxin-dependent manner. Once recruited by auxin, AUX/IAA proteins are ubiquitinated by the E3 ligase activity of the SCF-TIR1 complex, which marks the protein for destruction by the 26S proteasome.

TLS Online TPP Program

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#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

TLS Online TPP Program

#Id: 5323

#Unit 7. System Physiology – Animal

 Isovolumetric Ventricular Relaxation

When left ventricular pressure falls below aortic pressure, the aortic valve closes.

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