What is the path that blood travels through your body?

Oxygen-rich blood moves through your pulmonary veins to the left side of your heart and out of the aorta to the rest of your body. Capillaries in the lungs also remove carbon dioxide from your blood so that your lungs can breathe the carbon dioxide out into the air.

Blood from the body flows:

to the superior and inferior vena cava,

then to the right atrium.

through the tricuspid valve.

to the right ventricle.

through the pulmonic valve.

to the pulmonary artery.

to the lungs.

Oxygen deprived blood from the superior and inferior vena cava enters the right atrium of the heart and flows through the tricuspid valve (right atrioventricular valve) into the right ventricle, from which it is then pumped through the pulmonary semilunar valve into the pulmonary artery to the lungs.

Supply of oxygen to tissues (bound to hemoglobin, which is carried in red cells) Supply of nutrients such as glucose, amino acids, and fatty acids (dissolved in the blood or bound to plasma proteins (e.g., blood lipids)) Removal of waste such as carbon dioxide, urea, and lactic acid.

Blood flows through your heart and lungs in four steps: The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve.

With each heartbeat, the pump on the right side receives blood from the body and pumps it into the lungs to pick up oxygen. The pump on the left side receives this oxygen-rich blood from the lungs and pumps it throughout the body. This blood enters the top chamber of the right heart, called the right atrium.

Blood flows to the kidneys through the right and left renal arteries. Inside each kidney these branch into smaller arterioles. The blood is at very high pressure and flows through the arterioles into tiny knot of vessels called the Glomerulus. These are located in the nephrons.

Transport. Blood takes oxygen from the lungs to the cells of the body. It takes carbon dioxide from the body’s cells to the lungs where it is breathed out. Blood carries nutrients, hormones and waste products around the body.

Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. Oxygen-rich blood returns from the lungs to your heart’s left atrium through the pulmonary veins.

Movement of the leg squeezes the veins, which pushes the blood toward the heart. When the muscles contract the blood within the veins is squeezed up the vein and the valves open. Veins have valves that keep blood moving in one direction: back toward the heart.

Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.

Major arteries and veins: The blood from the heart is carried through the body by a complex network of blood vessels. The capillaries converge again into venules that connect to minor veins, which connect to major veins that take blood high in carbon dioxide back to the heart.

Veins are blood vessels that carry blood toward the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart.

Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body. From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart.

The red blood cells travel around the body within capillaries. The red blood cell travels through the pulmonary artery to the lungs. Here it picks up oxygen, travels back to the heart through the pulmonary vein and then enters the left atrium. The red blood cell then enters the right atrium.

The oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. This blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. From the left ventricle, the blood passes through the aortic valve to the aorta.

The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.

Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. The pulmonary vein empties oxygen-rich blood, from the lungs into the left atrium.

Arteries carry oxygenated blood away from the heart to the tissues, except for pulmonary arteries, which carry blood to the lungs for oxygenation (usually veins carry deoxygenated blood to the heart but the pulmonary veins carry oxygenated blood as well). There are two types of unique arteries.

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