Chapter 21. 21·4–21·11 The human circulatory system...
Show What You Know
Show What You Know - Self Quiz
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You must read each slide, and complete any questions on the slide, in sequence.
Instructions
Check your understanding of concepts from 21·4–21·11 The human circulatory system consists of a heart, blood vessels, and blood by answering the following questions.
1.
1. The largest artery in the human body is the:
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| E. |
Correct. (See section 21·4 Blood flows through the four chambers of the human heart.)
Incorrect. (See section 21·4 Blood flows through the four chambers of the human heart.)
2.
2. What is the main function of the sinoatrial (SA) node?
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| B. |
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| D. |
| E. |
Correct. (See section 21·5 Electrical activity in the heart generates the heartbeat.)
Incorrect. (See section 21·5 Electrical activity in the heart generates the heartbeat.)
3.
3. Which of the following values indicate a realistic blood pressure reading for a person with LOW blood pressure?
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| B. |
| C. |
| D. |
| E. |
Correct. (See section 21·9 Blood pressure is a key measure of heart health.)
Incorrect. (See section 21·9 Blood pressure is a key measure of heart health.)
4.
4. The hardening of arteries is known as:
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| B. |
| C. |
| D. |
| E. |
Correct. (See section 21·10 Cardiovascular disease is a leading cause of death in the United States.)
Incorrect. (See section 21·10 Cardiovascular disease is a leading cause of death in the United States.)
5.
5. The lymphatic system is a fluid transport system vital for human health. Instead of blood, this system transports _________, which fills its own capillaries and vessels and is made up of the _________________ fluid that bathes cells.
| A. |
| B. |
| C. |
| D. |
| E. |
Correct. (See section 21·11 The lymphatic system plays a supporting role in circulation.)
Incorrect. (See section 21·11 The lymphatic system plays a supporting role in circulation.)
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