Chapter 15: Vascular Distensibility and Functions of the Arterial and Venous Systems

Chapter 15: Vascular Distensibility and Functions of the Arterial and Venous Systems

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

1. A 65-year-old woman visits her family practitioner for an examination. She has a mean blood pressure of 95 mmHg and a heart rate of 74 bpm. Further tests by a cardiologist revealed that the patient has moderate aortic regurgitation. Which one of the set of changes would be expected in this patient?

Pulse Pressure                         Stroke Volume                        Systolic Pressure

1. ­                                              ­                                              ­
2. ­                                              ¯                                              ­
3. ­                                              ¯                                              ¯
4. ­                                              ­                                              ¯
5. ¯                                              ¯                                              ¯
6. ¯                                              ­                                              ¯
7. ¯                                              ­                                              ­
8. ¯                                              ¯                                              ­

ANS: AE

2. Which one of the following would increase venous hydrostatic pressure in the legs?

1. A decrease in right atrial pressure
2. Pregnancy
3. Movement of leg muscles
4. Hemorrhage

ANS: B

3. Which one of the following parts of the circulation has the highest compliance?

1. Capillaries
2. Venules
3. Veins
4. Aorta
5. Arteries

ANS: C

4. A 60-year-old man visits his family practitioner for his yearly examination. He has a blood pressure of 180/100 mmHg, a heart rate of 78 bpm, and a pulse pressure of 80 mmHg. His plasma cholesterol level is in the upper 25th percentile. A decrease in which of the following is the most likely explanation for the high pulse pressure in this patient?

1. Stroke volume
2. Arterial pressure
3. Heart rate
4. Arterial compliance
5. Total peripheral resistance

ANS: D

5. Which one of the following would tend to decrease pulse pressure?
6. An increase in metabolic rate
7. An increase in stroke volume
8. An increase in arterial compliance
9. An increase in venous return
10. An increase plasma volume

ANS: C