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Practice Reading: Multiple Choice, Multiple Answers
ID: #37810
The heart
The heart actually does two jobs. It pumps the used blood to the lungs and it pumps refreshed blood out to the body. The Bloods root from the right ventricle to the lungs is called the pulmonary circulation. The root from the left ventricle to the body and back is called the systemic circulation. The heart pumps oxygen rich blood from the lungs to all parts of the body through a network of tubes called arteries and smaller branches called arterials. The blood then moves into a network of tiny vessels called capillaries, where the exchange of oxygen and carbon dioxide between blood and body cells takes place. Blood returns to the heart via small vessels called venules, which lead in turn into larger tubes called vein. Carbon dioxide moves out of the body cells and into the blood. It travels in the blood until it reaches the lungs. There carbon dioxide passes from the blood to the alveoli and is expelled from the lungs. When the body exhales.
Which two statements accurately describe the functions and pathways of blood circulation as mentioned in the passage?
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