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The circulatory system connects us - The path of a drop of blood (2022-3) - Contenido educativo
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Are you conscious about the long travel that a drop of your blood must do every minute. We explain this fact in this video.
Hello, we are Blood Droplets, Sofía and Noa, and we are going to take you through our path
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around the circulatory system.
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This is the circulatory system, and we are going to briefly explain its parts.
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So the main part is the heart, which pumps the blood around all the body.
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The other main parts are the veins and arteries.
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Veins have thinner and more flexible walls, but arteries have thicker walls and a lot
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of pressure.
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And we also have capillaries, which are the ends of the veins that are always closed.
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Blood enters the heart, which pumps it to the lungs to get oxygen, and then back to
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the heart, which pumps it all around the body to oxygenate all of our tissues.
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The blood enters the right atrium through the superior vena cava, and then passes through
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the trascupid valve to the right ventricle, and then it goes through the pulmonary valve
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to the pulmonary arteries and ends in the lungs, where the gas exchange occurs.
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For the gas exchange, the blood goes through the pulmonary artery to an alveoli in the
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lungs.
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So the alveoli have loads of capillaries in which the gas exchange occurs.
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A vein capillary has the blood with carbon dioxide, which exchanges with oxygen and goes
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through a capillary artery back to the heart.
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The blood enters the left atrium through the pulmonary veins, and then passes through the
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mitral valve to the left ventricle, and then goes through the aortic valve to the aorta,
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to the rest of the body.
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When the blood gives all its nutrients, minerals, salts, and oxygen to the organs in the capillaries,
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it exchanges to the veins and then goes back to the heart and repeats this process all
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along again until you are dead.
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So this is the end of our talk.
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I hope you like our work.
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- Idioma/s:
- Autor/es:
- Noa y Sofía
- Subido por:
- Javier C.
- Licencia:
- Reconocimiento - No comercial - Sin obra derivada
- Visualizaciones:
- 72
- Fecha:
- 28 de junio de 2022 - 18:11
- Visibilidad:
- URL
- Centro:
- IES CALATALIFA
- Descripción ampliada:
- The third video of the series "global connections" a bilingual team´s project by IES Calatalifa year 2022
- Duración:
- 03′ 08″
- Relación de aspecto:
- 0.71:1
- Resolución:
- 720x1016 píxeles
- Tamaño:
- 12.46 MBytes