The subclavian artery runs into the axillary region where it becomes known as the axillary artery. 1  Arteries and Arterioles: Arteries are blood vessels that carry blood away from the heart. Blood carried by arteries is usually highly oxygenated, having just left the lungs on its way to the body’s tissues.
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The heart and circulatory system are our body's lifeline, delivering blood to the body's tissues. Brush up on your ticker with this body basics article.
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Veins carry blood back to the heart. They're not as muscular as arteries, but they contain valves that prevent blood from flowing backward. Veins have the same three layers that arteries do, but are thinner and less flexible. The two largest veins are the superior and inferior vena cavae.
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Cardiovascular System Anatomy. 1  Arteries and Arterioles: Arteries are blood vessels that carry blood away from the heart. Blood carried by arteries is usually highly oxygenated, having just left the lungs on its way to the body’s tissues.
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The heart is the key organ in the circulatory system. As a hollow, muscular pump, its main function is to propel blood throughout the body. It usually beats from 60 to 100 times per minute, but can go much faster when necessary.
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In the systemic circulation, blood travels out of the left ventricle, to the aorta, to every organ and tissue in the body, and then back to the right atrium. The arteries, capillaries, and veins of the systemic circulatory system are the channels through which this long journey takes place.
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Problems of the Heart and Circulatory System en español El aparato circulatorio y el corazón With each heartbeat, blood is sent throughout our bodies, carrying oxygen and nutrients to every cell.
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About the Heart and Circulatory System. The circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries. Our bodies actually have two circulatory systems: The pulmonary circulation is a short loop from the heart to the lungs and back again, and the systemic circulation (the system we usually think of as our circulatory system) sends blood from the heart to all the other parts of our bodies and back again.
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Veins and Venules: Veins are the large return vessels of the body and act as the blood return counterparts of arteries. Because the arteries, arterioles, and capillaries absorb most of the force of the heart’s contractions, veins and venules are subjected to very low blood pressures.
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Arterial walls have three layers: 1  The endothelium is on the inside and provides a smooth lining for blood to flow over as it moves through the artery. 2  The media is the middle part of the artery, made up of a layer of muscle and elastic tissue. 3  The adventitia is the tough covering that protects the outside of the artery.
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what organ transfers blood to the heart
Veins carry blood back to the heart.