Match two parts of the sentences together. 1. Blood flows through the body 2. The goes to the lungs 3. The atria receive the blood blood oxygen-poor 4. The ventricles give the blood 5. Each beat of the heart is followed by 6. The heart consists of 7. The cardiovascular system includes

•from the body and lungs.
•the heart, arteries, veins and capillaries.
•using the blood vessels.
•a period of rest.
•four chambers.
•where it becomes oxygen- rich.
•to the body and lungs.

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1. Blood flows through the body - Using the blood vessels.
Explanation: Blood flows through the body using the blood vessels, which include the arteries, veins, and capillaries.

2. The goes to the lungs - To the body and lungs.
Explanation: After flowing through the body, the blood goes to the lungs to receive oxygen.

3. The atria receive the blood blood oxygen-poor - from the body and lungs.
Explanation: The atria, which are part of the heart's four chambers, receive the blood from the body and lungs. At this point, the blood is oxygen-poor, meaning it has not yet been oxygenated.

4. The ventricles give the blood - to the body and lungs.
Explanation: The ventricles, the other two chambers of the heart, pump the blood to the body and lungs. At this point, the blood is oxygen-rich, having received oxygen in the lungs.

5. Each beat of the heart is followed by - a period of rest.
Explanation: After contracting and pushing blood out to the body and lungs, the heart goes through a period of rest before the next beat.

6. The heart consists of - four chambers.
Explanation: The heart is a muscular organ that consists of four chambers: two atria and two ventricles.

7. The cardiovascular system includes - the heart, arteries, veins, and capillaries.
Explanation: The cardiovascular system includes the heart, which pumps the blood, as well as the arteries, veins, and capillaries, which are the blood vessels responsible for carrying the blood throughout the body.