(Originais Teachy 2024) - Question Hard of Sciences

Think of a big city. In the streets of this city, there are many cars and buses circulating, taking people and things from one place to another. Now, our body also has a transportation system, which is like a network of roads and tiny paths, where a liquid called blood flows, carrying food and oxygen to the cells and removing things that are no longer needed from there. This transportation system of the body is called the circulatory system. It is formed by the heart, which is our 'central station,' and by blood vessels, such as arteries and veins, which are like the roads and streets where the blood circulates. Now, imagine that you are teachers explaining to the students of a class how the circulatory system works and what each part of it does. Write a detailed explanation about the role of the heart, arteries, and veins in the circulatory system and how they work together to keep the body healthy. Remember to mention what each of these components does and why these functions are important for our body.