The Circulatory System Part 2: Blood Vessels
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YouTubeProfessor Dave Explains
The Circulatory System Part 2: Blood Vessels
Now that we understand the structure and function of the heart, which is to pump blood all around the body, what is the blood traveling around in exactly? Those would be blood vessels. There are many kinds, like arteries, arterioles, capillaries, venules, and veins, and they all have a few differences. Let's zoom in on each of these now! Watch ...
414.7K viewsApr 11, 2019
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How Everything Works on Instagram: "Blood types are determined by molecules called antigens that sit on the surface of red blood cells. These act as identification markers, helping the immune system recognize which cells belong in the body. The main system for classifying blood is the ABO system, which divides blood into four groups: A, B, AB, and O. Type A has A antigens, type B has B antigens, type AB has both, and type O has neither. Another key component is the Rh factor, which indicates whe
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How Everything Works on Instagram: "Blood types are determined by molecules
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