Chapter 19: Physiology of the Cardiovascular System

Chapter 19: Physiology of the Cardiovascular System

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

TRUE/FALSE

1. Under abnormal conditions, the AV node or the Purkinje fibers may act as ectopic pacemakers.

ANS:   T                      DIF:    Memorization

REF:    Page 663 | Page 664                           TOP:    Conduction System of the Heart

2. The transvenous approach is one method of inserting a permanent pacemaker.

ANS:   T                      DIF:    Memorization                                     REF:    Page 664

TOP:    Artificial Cardiac Pacemakers

3. The T wave reflects repolarization of the atria.

ANS:   F                      DIF:    Memorization                                     REF:    Page 666

TOP:    Electrocardiogram (ECG)

4. Increased baroreceptor stimulation causes increased sympathetic activity to the heart.

ANS:   F                      DIF:    Memorization

REF:    Page 673 | Page 675                           TOP:    Factors That Affect Heart Rate

5. Emotional stress can influence heart rate by creating impulses that go from the cerebrum to the cardiac centers via the hypothalamus.

ANS:   T                      DIF:    Memorization

REF:    Page 673 | Page 675                           TOP:    Factors That Affect Heart Rate