From the heart, through the arteries, except the pulmonary artery.
Arteries flow away from the heart. That's a technical answer. Some blood tubes that look like arteries flow into the heat to nourish it. Of interest is the pulmonary artery, the only artery to carry un-oxygenated blood. It carries blood to the lungs where it is oxygenated.
An arteriole transports oxygenated blood from the arteries to the capillary beds and a venule transports de-oxygenated blood from the capillary beds to the veins.
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Arterioles are small blood vessels that carry oxygenated blood to the body tissues.
From the capillaries, blood will flow into the veins and pump the un-oxygenated blood back to the heart.
The aortic valve sees oxygenated blood. It is located between the left ventricle and the aorta, allowing oxygen-rich blood to flow from the heart to the body.
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Oxygenated blood returning from the lungs flow into the left atrium.
Blood flows through veins to get to the heart. Arteries are blood vessels for the blood to leave the heart once it has been oxygenated.
Yes, the aorta semilunar valve is associated with oxygenated blood. It is located at the exit of the left ventricle and opens to allow oxygen-rich blood to flow from the heart into the aorta, which then distributes it throughout the body. The aorta itself carries oxygenated blood away from the heart.
After the flow of blood(oxygenated) through the brachiocephalic(jugular) artery, the brachiocephalic (jugular) vein will return the blood(de-oxygenated) back to the anterior part of the vena cava. Then, into the right auricle. Et-cetera.
Almost none. It does control its own flow, and it will speed the heart in anticipation of need, but that does not effect the actual flow of blood.