Blood is pumped by your heart and circulates around your body in arteries and veins. Arteries take oxygenated blood away from the heart and the veins return blood back to the heart and lungs for refuelling. In the leg there are 2 sets of veins, the deep (invisible) component and the superficial (under the skin) veins. The deep veins can be thought of as the 'motorway' of return of blood to the heart and the superficial veins the 'slip roads' which feed blood into the deep veins. Other communications (perforating veins) also exist between the deep and superficial vein systems. Blood flow is maintained by muscle contraction 'the muscle pump'. Contraction of the muscles forces blood up the leg. When the muscle relaxes small valves close and stop the blood being pulled back towards the foot due to the effect of gravity.
If the veins enlarge or the valves fail to function normally the blood flow becomes abnormal swinging both up and down the leg. The volume and pressure of blood within the vein network increases. This is called 'reflux' and is the first change that can lead to the development of symptoms and also the typical changes of superficial venous hypertension. Visible large bulging varicose veins may then develop. Sometimes skin changes can occur with thickening and discolouration of the skin and rarely ulceration.]
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The vessels carrying blood Away from the heart are the Arteries, while the veins return blood to the heart.
Veins carry the blood to the Heart while arteries carry it away from the heart.
The pulmonary arteries, which carry blood from the heart to the lungs, are the only arteries which carry deoxygenated blood. Conversely, the pulmonary veins, carrying blood from the lungs to the left atrium of the heart, are the only veins carrying oxygenated blood. Usually veins carry deoxygenated blood.
The pulmonary arteries, which carry blood from the heart to the lungs, are the only arteries which carry deoxygenated blood. Conversely, the pulmonary veins, carrying blood from the lungs to the left atrium of the heart, are the only veins carrying oxygenated blood. Usually veins carry deoxygenated blood.
arteries because they carry blood from the heart,carrying oxygen to the blood cells
The Pulmonary Vein carries oxygenated blood (blood carrying oxygen) to the heart from the lungs and the other superior vena cava and the inferior vena cava (both are veins also) carries de-oxygenated blood (blood not carrying oxygen) to the heart from the body.
Veins carry deoxygenated blood from the tissues and organs to the heart. Arteries are the means for carrying the oxygenated blood.
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yes, Vessels carrying blood back to the heart are called veins, and the vessels carrying blood away from the heart to the body are called arteries.
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You must learn that the term artery and vein are anatomical terms. Arteries Always carry blood Away from the heart. And veins bring blood back to the heart. Arteries are not always oxygen filled and veins are not always carbon dioxide filled. Since the pulmonary veins are carrying blood back from the lungs to the heart, they must have more oxygen.
You must learn that the term artery and vein are anatomical terms. Arteries Always carry blood Away from the heart. And veins bring blood back to the heart. Arteries are not always oxygen filled and veins are not always carbon dioxide filled. Since the pulmonary veins are carrying blood back from the lungs to the heart, they must have more oxygen.