Afterload

- for the left ventricle is equivalent to aortic pressure.

- for the right ventricle is equivalent to pulmonary artery pressure.

- Increases in arterial pressure, therefore, produce an increase in afterload.

Myocardial cell

Figure 3-7. Stepwise explanation of how ouabain (digitalis) causes an increase in intracellular [Ca2+] and myocardial contractility.

Myocardial cell

Control

Negative inotropic effect

Positive inotropic effect

Right atrial pressure or end-diastolic volume

Figure 3-8. Frank-Starling relationship and the effect of positive and negative inotropic agents.

Control

Negative inotropic effect

Positive inotropic effect

Right atrial pressure or end-diastolic volume

Figure 3-8. Frank-Starling relationship and the effect of positive and negative inotropic agents.

Was this article helpful?

0 0
Anxiety and Depression 101

Anxiety and Depression 101

Everything you ever wanted to know about. We have been discussing depression and anxiety and how different information that is out on the market only seems to target one particular cure for these two common conditions that seem to walk hand in hand.

Get My Free Ebook


Post a comment