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Circulatory System Quiz 429 (20 MCQs)

Quiz Instructions

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1. Where do red blood cells take oxygen?
2. Because the pressure leaving the capillaries, then entering the venules, and finally the veins is so low, many veins have ..... to help keep the blood from flowing backward.
3. Our blood may just look like it is red liquid, but it is actually made up of lots of different things. What do you think it is made up of?
4. Which structure warms, humidifies, and filters the air as it passes through?
5. Supplies blood to all the cells of the heart.
6. Which one is not transported in the blood plasma
7. Veins carry blood ..... the heart, while arteries carry blood ..... the heart.
8. What is an other word for windpipe?
9. The nodes in the myelin sheath are known as the
10. What part of the hemoglobin molecule is responsible for attracting Oxygen?
11. What are the tiny white cords named that help anchor the flaps (valves) to the wall of the heart?
12. The universal recipient blood group is
13. What types of circulatory systems do amphibians have?
14. A student feels that his body is always weak, tired, lethargic, and looks pale. After laboratory tests, the Hb level in his blood was very low. The student was diagnosed as suffering from.....
15. ..... carry oxygen away from the heart to the body.
16. A decrease in a blood vessel's internal diameter, causing a decrease in blood flow-
17. The instrument used to measure heart rate is the
18. The main function of a white blood cell is:
19. CHOOSE THE IMPORTANT ORGAN OF OUR BODY.
20. Which is true of active transport?
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