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  1. Access easy-to-understand explanations and practical examples on key biology topics, from cells to ecosystems. Learn at your own pace with bite-sized, verified content. Learn biology

  2. Study with Quizlet and memorize flashcards containing terms like Atrium and Ventricle, Artery, Arterioles and more.

  3. Study with Quizlet and memorize flashcards containing terms like The main function of a heart valve is to: a. coordinate contractions of the atria and ventricles b. prevent backflow c. control the amount of blood that flows into the arteries d. prevent mixing of oxygen-rich and oxygen-poor blood, The pulmonary vein carries a. deoxygenated blood ...

  4. Aug 30, 2024 · Therefore, the correct answer is the heart, blood, and blood vessels, as they are the main components of the circulatory system. 2. Where is the heart located in your body? The heart is located near the center of your chest. It is positioned slightly to the left side of your chest, behind the sternum (breastbone) and between the two lungs.

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  5. Free multiple-choice quizzes on the anatomy, physiology and pathology of the human cardiovascular system (part of the circulatory system). Plus there are links to lots of other great anatomy and physiology quizzes and other resources; all free!

  6. May 23, 2024 · The quiz below is on the heart and circulatory system and is set to see how well you can identify the parts of the heart. 1. What is the main artery of the body? The aorta is the main artery of the body. It is responsible for carrying oxygenated blood from the heart to all the organs and tissues in the body.

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  8. Describe and explain the function of the circulatory system - The circulatory system consists of the heart, the blood vessels (veins, arteries, and capillaries), and the blood. The heart is a four-chambered muscular organ ...

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