What is the process of the pulmonary circulation?

Answer 1

Deoxygenated blood returns to the heart in the right atrium by the superior vena cava and the inferior vena cava. From the right atrium the blood flows through a valve and into the right ventricle. The ventricle ejects the deoxygenated blood into the lungs by the pulmonary artery (only artery in the body carrying deoxygenated blood). Once the blood is in the lungs, it is distributed to capillary beds which allow very large surface area for deoxygenated blood to become oxygenated from the air we inhale (side note: only about 30% of atmospheric air is oxygen - the rest is mostly nitrogen). as the blood becomes freshly oxygenated it also releases carbon dioxide (metabolic by product) which you exhale. the oxygenated blood returns to the left atrium of the heart by the pulmonary vein (only vein to carry oxygenated blood). from the left atrium the blood passes through a valve and into the stronger of the two ventricles - the left ventricle. the left ventricle then forcefully ejects oxygenated blood out to the body by the aorta.

Answer 2

Blood flows from the RIGHT VENTRICLE of the heart through the pulmonary artery and into the lung, where it picks up oxygen, and releases carbon dioxide.

The blood then returns to LEFT ATRIUM of the heart through the pulmonary vein (the only vein in the body to carry OXYGENATED blood). It then passes down into the LEFT VENTRICLE where it is pumped into the AORTA and continues to the rest of the body.

Answer 3

The pulmonary circulation carries the blood to and from the lungs. In the heart, the blood flows from the right atrium into the right ventricle; the tricuspid valve prevents backflow from ventricles to atria. The right ventricle contracts to force blood into the lungs through the pulmonary arteries. In the lungs oxygen is picked up and carbon dioxide eliminated, and the oxygenated blood returns to the heart via the pulmonary veins, thus completing the circuit. In pulmonary circulation, the arteries carry oxygen-poor blood, and the veins bear oxygen-rich blood.

Answer 4

Pulmonary circulation is the circulation of blood from the heart to the lungs and back. Deoxygenated blood from the heart is pumped to the lungs where it picks up oxygen and releases carbon dioxide. The oxygenated blood then returns to the heart to be pumped to the rest of the body.

Answer 5

Vena cava, right atrium, right ventricle, pulmonary circulation, left atrium, left ventricle, back to the systemic circulation.