Where is circulatory system located

Blood flows continuously through the capillaries, it does not "squirt" and "pause" as your heart beats. This continuous flow is necessary because there is a constant exchange of oxygen and nutrients happening in the capillary walls.

No cell in the body is far from a capillary. As blood travels through the capillaries, its supply of oxygen is reduced and has picked up waste products as well. From the capillaries, blood enters the venules, the veins, and then travels back to the heart to be refreshed and sent out once again. In conclusion, your heart works like a pump which provides nutrients to every organ, tissue, and cell throughout your body. In turn, your cells dump waste products, like carbon dioxide, back into your blood to be returned to your heart.

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The heart, blood and blood vessels work together to service the cells of the body. Using the network of arteries, veins and capillaries, blood carries carbon dioxide to the lungs for exhalation and picks up oxygen.

From the small intestine, the blood gathers food nutrients and delivers them to every cell. Blood Blood consists of: Red blood cells — to carry oxygen White blood cells — that make up part of the immune system Platelets — needed for clotting Plasma — blood cells, nutrients and wastes float in this liquid.

The heart The heart pumps blood around the body. It sits inside the chest, in front of the lungs and slightly to the left side. The heart is actually a double pump made up of four chambers, with the flow of blood going in one direction due to the presence of the heart valves.

The contractions of the chambers make the sound of heartbeats. The right side of the heart The right upper chamber atrium takes in deoxygenated blood that is loaded with carbon dioxide. The blood is squeezed down into the right lower chamber ventricle and taken by an artery to the lungs where the carbon dioxide is replaced with oxygen. The left side of the heart The oxygenated blood travels back to the heart, this time entering the left upper chamber atrium.

It is pumped into the left lower chamber ventricle and then into the aorta an artery. The blood starts its journey around the body once more.

Blood vessels Blood vessels have a range of different sizes and structures, depending on their role in the body. Arteries Oxygenated blood is pumped from the heart along arteries, which are muscular. Arteries divide like tree branches until they are slender. The largest artery is the aorta, which connects to the heart and picks up oxygenated blood from the left ventricle. The only artery that picks up deoxygenated blood is the pulmonary artery, which runs between the heart and lungs.

The heart is comprised of two atria and two ventricles. Blood enters the heart through the…. In coordination with valves, the chambers work to keep blood…. The coronary sinus is a collection of smaller veins that merge together to form the sinus or large vessel , which is located along the heart's…. The left atrium is one of the four chambers of the heart, located on the left posterior side.

Its primary roles are to act as a holding chamber for…. The right ventricle is the chamber within the heart that is responsible for pumping oxygen-depleted blood to the lungs. The right ventricle is one of…. The vagus nerve is the longest of the 12 cranial nerves. Here, learn about its anatomy, functions, and the kinds of health problems that can occur.