13 steps of pulmonary circulation

Step 1

Superior and Inferior Vena Cava

Step 2

Right Atrium

Step 3

Tricuspid Valve

Step 4

Right Ventricle

Step 5

Pulmonary Semilunar Valve

Step 6

Pulmonary Artery

Step 7

Lungs

Step 8

Four Pulmonary Veins

Step 9

Left Atrium

Step 10

Mitral Valve

Step 11

Left Ventricle

Step 12

Aortic Semilunar Valve

Step 13

Aorta

Explanation:

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risky behaviors. many behaviors are risky for your health and happiness. the main hazards include using tobacco, alcohol, and sexual activity.