Circulatory System.

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Presentation transcript:

Circulatory System

How does the Heart work?

4 Chambers Atrium Atrium Right Side Left Side Ventricle Ventricle

4 Valves Mitral Tricuspid Aortic Pulmonary

Just 13 Steps for the Pathway Of Circulation

1. Superior & Inferior Vena Cava (largest veins)

2. Right Atrium

3. Tricuspid Valve

4. Right Ventricle

5. Pulmonary Valve

6. Pulmonary Artery

7. LUNGS

8. Pulmonary Veins

9. Left Atrium

10. Mitral Valve

11. Left Ventricle

12. Aortic Valve

13. Aorta (largest artery)

Thick muscle that divides the right & left side of the heart = Septum

Common Heart Problems Heart Valve Problems Stenotic Valve- hardened valve restricting blood flow Regurgitation- “leaky valve” valve does not close tightly Heart Chamber Problems Systolic Heart Failure- weak or enlarged heart causing left ventricle to lose its ability to contract. Diastolic Failure- the chamber becomes stiff and loses its ability to relax and fill with blood Artery Problems Coronary Artery Disease- arteries supplying blood to heart become hardened and narrowed. Rhythm Problems Arrhythmias- irregular heartbeat due to disruption of normal electrical rhythm of the heart. Circulatory Problems Heart Attack- reduced blood flow to the heart causing damaged heart muscle. Stroke- reduced blood flow to the brain causing damaged brain cells.