How does blood flow through your lungs?

How does blood flow through your lungs?

From your pulmonic valve, blood travels to the pulmonary artery to tiny capillary vessels in the lungs. Here, oxygen travels from the tiny air sacs in the lungs, through the walls of the capillaries, into the blood.

How is blood in lungs oxygenated describe?

Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.

What happens to blood as it circulates through the lungs?

The lungs refresh the blood with a new supply of oxygen, which comes from the air that you breathe in. The now oxygen-rich blood, shown in red, then returns from the lungs and enters the left atrium. The oxygen-rich blood then flows from the left atrium to the left ventricle.

What carries the blood to and from the heart?

The arteries (red) carry oxygen and nutrients away from your heart, to your body’s tissues. The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body’s tissues.

What happens to blood when it reaches the lungs?

Blood that reaches the lungs travels throughout a network of small blood vessels, where oxygen moves into the blood and carbon dioxide moves out of the blood, according to the National Heart, Lung and Blood Institute. This oxygen-rich blood is transported through the pulmonary veins and back to the heart,…

How does the pulmonary artery move blood through the body?

The capillaries connect to a network of arteries and veins that move blood through your body. The pulmonary artery and its branches deliver blood to the capillaries that surround the alveoli. This blood is rich in carbon dioxide and low in oxygen. Carbon dioxide moves from the blood into the air inside the alveoli.

Where does the blood go after it leaves the heart?

Blood Flow Through The Heart. The pulmonic artery carries blood to the lungs where it “picks up” oxygen, and leaves the lungs and returns to the heart through the pulmonic vein. The blood enters the left atrium, then descends through the mitral valve into the left ventricle. The left ventricle then pumps blood through the aortic valve,…

How does oxygen get into the lungs from the heart?

Oxygen that enters the blood in the lungs is obtained through air that is breathed in, or inhaled. The National Heart, Lung and Blood Institute explains that inhaled air travels down the windpipe, through the bronchial tubes and into small air sacs called alveoli. Small blood vessels called capillaries surround the alveoli.