Hemácias - carregar oxigênio? Chame as hemácias

Hello, little scientists, I am Professor Bill Tyson and together we are going to know different forms of science. Lately, we have studied the cardiovascular system. We have already spoken about the heart and the blood vessels, it is time to start talking about the one that is carried throughout the body, the blood.

The blood has three very important cell types, and let's go today to talk about one of them, the red blood cells. Let's get to know them better. They have a pigment called hemoglobin which is what gives the red color to our blood, so the red blood cells are also called red blood cells.

RBCs are ringed cells because they have no nuclei. they look like a donut, as if the center had only a slight layer of cover. They can be considered carrier cells, the work of the red blood cells is to pick up the oxygen in the lungs and lead to all the cells of the body.

In this circuit, after leaving the oxygen, the red blood cells take part of the carbon dioxide produced by the cells and lead to the lungs, so that it is released when we exhale. Although it takes a long route, a red blood cell takes only one minute to get out of the lungs, leave the oxygen in the cells, pass through the heart and return to the lungs. RBCs are produced in the bone marrow and after 120 days they migrate to the liver and spleen.

At these sites they will be destroyed, but their contents will be recycled to aid in the production of new red blood cells. For now, it's just personal, see you next time. And then?

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