1511649
Descrição
FlashCards por miquelangelmalas, atualizado more than 1 year ago
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Criado por miquelangelmalas
aproximadamente 12 anos atrás
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| Questão | Responda |
| blood vessels | The blood vessels are the part of the circulatory system that transports blood throughout the human body. There are three major types of blood vessels |
| Arteries | These are blood vessels that carry blood away from the heart. Arteries have thick walls that have a layer of smooth muscle. |
| Veins | These are blood vessels that carry blood back to the heart. Veins have thinner walls than arteries do. |
| Capillaries | These are the tiniest blood vessels in the body. The walls of capillaries are only as thick as a single layer of cells. |
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