Deoxygenated Lungs

Likewise, Blood flows from the right atrium to the right ventricle, and then is pumped to the lungs to receive oxygen. From the lungs, the blood flows to the left atrium, then to the left ventricle, forming the complete circulation.

 Once the blood cell gets to the superior vena cava it goes through the right atrium and the right ventricle, then through the pulmonary artery and into the lungs.

nourished. This is the job of the blood, with the heart and vessels acting as

Oxygen poor blood fills the right atrium from either the superior or inferior vena cava.

First the de-originated blood goes into the right atrium. And the originated blood goes through the left atrium. The right atrium then pumps blood through the tricuspid valve into the right ventricle, and the left atrium pumps blood through the bicuspid valve into the left ventricle. The right ventricle contracts, semi lunar valve opens and deoxygenated blood travels back to the lungs. The left ventricle contracts, semi lunar valve opens and oxygenated blood goes out to the body.

It begins at the base of the heart’s right ventricle and is approximately 3 cm in diameter and 5 cm in length (Yahoo Health, 2012). It then splits into the left and right pulmonary arteries. The right pulmonary artery delivers oxygen depleted blood to the right lung. From the right pulmonary artery I have made it to the right lung. Once in the lung I will travel South West to reach the lower lobe of the right lung.

The right atrium is where the process begins. Then, blood travels through the tricuspid valve to the right ventricle, and from there to the pulmonary artery. Once the blood travels through the pulmonary artery, it reaches the lungs. While in the lungs, the blood goes through a gas exchange: deoxygenated blood gets oxygenated (The gas exchange takes place in the alveoli, which are tiny air sacs in the bottom of the lungs

Meanwhile, the left receives the now oxygen rich blood that comes from the lungs and is then pumped through the arteries. However, this time the left ventricle receives the

The oxygenated blood then leaves the lungs though the pulmonary veins, which returns the blood to the left atrium. Once the blood has re-entered the heart it flows through the bicuspid valve, and into the left ventricle. The one-way valves are important for preventing any backward flow of blood. If blood started flowing the wrong way, the blood gases would mix, causing a serious threat to the body. The blood is then pumped through the aortic valve into the aorta to then circulate through the systematic

From the right atrium the blood moves into the right ventricle through the AV valve. When the ventricles contract the blood is moves through the semilunar valve into the pulmonary artery. This artery then branches off into the left lung and the right lung so that the blood can become oxygenated. The oxygen-rich blood returns to the left atrium of the heart through the pulmonary veins.

Right Ventricle – Receives blood from the right atrium where it will be pumped back into the lungs for oxygenation.

The superior vena cava receives deoxygenated blood from the neck, upper limb and the head, while the inferior vena cava receives blood from the lower torso and the legs. The blood is then send to the heart.

from the lungs to other organs and returning carbon dioxide back to the lungs to be

This valve opens to allow blood to flow from the right atrium to the right ventricle (Higgins, Roos & Ovid Technologies, 2006).

- Keep the oxygenated blood flows from the heart to body cells, apart from the pulmonary artery that takes the deoxygenated blood to the lungs