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- 1. Multiple ChoiceWhat is the main organ of the circulatory system?bladderheartveinsarteries
- 2. Multiple ChoiceOxygen-poor blood flows into what atrium?leftbottomrighttop
- 3. Multiple Choice
The two chambers of the heart which receive blood are known as the _________atriaventriclessystemicspulmonic - 4. Multiple ChoicePulmonary circulation involves blood flow to and from the heart and the _______.bodydigestive organsbrainlungs
- 5. Multiple ChoiceBlood passes fromventricle to atriaaorta to pulmonary trunkatria to ventricleatria to atria
- 6. Multiple ChoiceFreshly oxygenated blood is delivered to the _____________ and then it passes into the __________ to be pumped to the entire body.right ventricle; right atriumleft ventricle; left atriumleft atrium; left ventricleright atrium; right ventricle
- 7. Multiple ChoiceThe most muscular chamber of the heart is theleft ventricleleft atriumright atriumright ventricle
- 8. Multiple ChoiceThe name given to the study of the heart structure and functioncardiologyepidemiologyendocrinologybiology
- 9. Multiple ChoiceWhat is the funtion of the capillaries?Endures high blood pressureGet rid of wasteCollect bloodTransfer oxygen and nutrients
- 10. Multiple ChoiceWhat is the aorta?A muscular tubeRegulate blood flowA small veinThe main artery of the body
- 11. Multiple ChoiceThese are vessels that return oxygen-poor blood to the heart. They are thin walled.VeinsVenulesArteriesArterioles
- 12. Multiple ChoiceThese are vessels that carry oxygen-rich blood from the heart. They are thick walled.VeinsVenulesArteriesArterioles
- 13. Multiple ChoiceThe bottom chambers of the heart are calledventriclesatriavena cavavalves
- 14. Multiple ChoiceThe circulatory system works with the ___________ system to provide our body with oxygen.respiratorydigestivemuscularskeletal
- 15. Multiple ChoiceA flap of tissue that prevents blood from flowing backwardAortaAtriumSeptumValve
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