Question

Difference between systemic and pulmonary circulation.

Answer 1

1. In human circulatory system blood passes through the heart twice.
2. One is called systemic as the oxygenated blood passes from left ventricle to different organs via aorta.
3. The other is pulmonary circulation as the deoxygenated blood from the organs that comes into right auricle moves down the right ventricle, from there it is taken to lungs via pulmonary artery. Thus, it is called double circulation.

Systemic circulation	Pulmonary circulation
The oxygenated blood passes from left ventricle to different organs via aorta that is blood between heart and rest of the body.	The deoxygenated blood from the organs that comes into right auricle moves down the right ventricle, from there it is taken to lungs via pulmonary artery that is heart and lungs.
Includes inferior and superior vena cava, aorta and blood vessels.	Consists of pulmonary vein and pulmonary artery.