THE HEART AND ITS FUNCTION
83 Questions I 31 Attempts I Created By TamaraBrown 640 days agoCHAPTER 17
Question Excerpt From THE HEART AND ITS FUNCTION
| Q.1) | Increase in the strength of myocardial contraction that occurs without stretching the heart |
| A. |
| B. |
| C. |
| Q.2) | Increase in the strength of myocardial contraction that occurs when the heart is· stretched |
| A. |
| B. |
| C. |
| Q.3) | Phase of the cardiac cycle that refers to contraction of the heart muscle |
| A. |
| B. |
| C. |
| Q.4) | Sequence of events that occurs in the heart in one beat |
| A. |
| B. |
| C. |
| Q.5) | Beats/min |
| A. |
| B. |
| C. |
| Q.6) | Coronary blood flow is greatest during this phase of the cardiac cycle |
| A. |
| B. |
| C. |
| Q.7) | Determined by heart rate x stroke volume |
| A. |
| B. |
| C. |
| Q.8) | Amount of blood pumped by the heart in 1 minute |
| A. |
| B. |
| C. |
| Q.9) | 70mL/bea |
| A. |
| B. |
| C. |
| Q.10) | The capacity to increase cardiac output above the resting cardiac output |
| A. |
| B. |
| C. |
| Q.11) | What the ventricles are" doing" when the atrioventricular (AV) valves are closed and the semilunar valves are open |
| A. |
| B. |
| C. |
| Q.12) | Amount of blood pumped by the ventricle per beat |
| A. |
| B. |
| C. |
| Q.13) | Its duration is 0.8 second with a normal resting heart rate. |
| A. |
| B. |
| C. |
| Q.14) | The phase of the cardiac cycle that refers to relaxation of the ventricles |
| A. |
| B. |
| C. |
| Q.15) | Ability of the myocardium to match venous return and cardiac output on a beat-to-beat basis |
| A. |
| B. |
| C. |
| Q.16) | Phase of the cardiac cycle that shortens most in response to tachycardia |
| A. |
| B. |
| C. |
| Q.17) | What the ventricles are "doing" when the AV valves are open and the semilunar valves are closed |
| A. |
| B. |
| C. |
| Q.18) | 5000mL/min |
| A. |
| B. |
| C. |
| Q.19) | Forms the basis of Starling's law of the heart |
| A. |
| B. |
| C. |
| Q.20) | The percentage of the end-diastolic volume (EOV) that is pumped |
| A. |
| B. |
| C. |
| Q.21) | The resistance or opposition to the flow of blood |
| A. |
| B. |
| C. |
| Q.22) | The amount of blood in the ventricles at the end of its resting phase |
| A. |
| B. |
| C. |
| Q.23) | Change in the rate or speed of the cardiac impulse that travels through the conduction system of the heart |
| A. |
| B. |
| C. |
| Q.24) | Example hypertension |
| A. |
| B. |
| C. |
| Q.25) | Venous return |
| A. |
| B. |
| C. |
| Q.26) | Also called preload |
| A. |
| B. |
| C. |
| Q.27) | Change in myocardial contractile force that is not caused by stretch |
| A. |
| B. |
| C. |
| Q.28) | Change in heart rate |
| A. |
| B. |
| C. |
| Q.29) | Three-pillow dyspnea |
| A. |
| B. |
| C. |
| Q.30) | Hepatomegaly (enlarged liver), distended jugular veins aVOs), pedal edema |
| A. |
| B. |
| C. |
| Q.31) | Pulmonary edema |
| A. |
| B. |
| C. |
| Q.32) | Consequence of chronic lung disease such as emphysema and asthma |
| A. |
| B. |
| C. |
| Q.33) | Backup within the pulmonary capillaries causing water to accumulate in the lungs |
| A. |
| B. |
| C. |
| Q.34) | Cyanosis, dyspnea, orthopnea |
| A. |
| B. |
| C. |
| Q.35) | Most likely to say "1 can't breathe |
| A. |
| B. |
| C. |
| Q.36) | Most likely to develop in response to chronic systemic hypertension |
| A. |
| B. |
| C. |
| Q.37) | Cor pulmonale |
| A. |
| B. |
| C. |
| Q.38) | Actin and myosin, striated and involuntary are descriptive terms for the |
| A. |
| B. |
| C. |
| Q.39) | Seventy (70) mL/beat x 72 beats/min is the amount of blood that determines the |
| A. |
| B. |
| C. |
| Q.40) | Which of the following terms describes myocardial contraction and relaxation? |
| A. |
| B. |
| C. |
| Q.41) | Which of the following occurs during ventricular systole? |
| A. |
| B. |
| C. |
| Q.42) | The heart drug digitalis stimulates the parasympathetic nerve that supplies the heart. What cardiac effect is expected? |
| A. |
| B. |
| C. |
| Q.43) | Which of the following increases stroke volume? |
| A. |
| B. |
| C. |
| Q.44) | Stretching the heart causes the force of myocardial contraction to increase. This stretch effect is called |
| A. |
| B. |
| C. |
| Q.45) | A chronic elevation in afterload, as in systemic hypertension, is most likely to cause |
| A. |
| B. |
| C. |
| Q.46) | If heart rate increases to 170 beats/min |
| A. |
| B. |
| C. |
| Q.47) | An increase venous return of blood to the heart |
| A. |
| B. |
| C. |
| Q.48) | Preload is most related to |
| A. |
| B. |
| C. |
| Q.49) | A drug, such as atropine, that blocks the muscarinic receptors is most likely to |
| A. |
| B. |
| C. |
| Q.50) | A beta,-adrenergic agonist |
| A. |
| B. |
| C. |
| Q.51) | Norepinephrine (NE) |
| A. |
| B. |
| C. |
| Q.52) | Blockade of the effects of acetylcholine ACh on the heart |
| A. |
| B. |
| C. |
| Q.53) | 'What happens when the actin and myosin in the ventricles form cross-bridges |
| A. |
| B. |
| C. |
| Q.54) | For the ventricles to fill, the |
| A. |
| B. |
| C. |
| Q.55) | If the QRS complex does not develop, the |
| A. |
| B. |
| C. |
| Q.56) | Which of the following is most likely to increase the ejection fraction? |
| A. |
| B. |
| C. |
| Q.57) | Which of the following is an age-related cardiac change |
| A. |
| B. |
| C. |
| Q.58) | The amount of blood in the ventricle at the end of its resting phase is the |
| A. |
| B. |
| C. |
| Q.59) | Under what condition is end-diastolic volume (EDV) most likely to increase while ejection fraction decreases? |
| A. |
| B. |
| C. |
| Q.60) | A change in preload causes a change in myocardial contractile force. This response is known as a |
| A. |
| B. |
| C. |
| Q.61) | A patient in heart failure is given a drug that is classified as a beta1 adrenergic agonist. The drug |
| A. |
| B. |
| C. |
| Q.62) | Which of the following statements is correct about cardiac output? |
| A. |
| B. |
| C. |
| Q.63) | During ventricular diastole |
| A. |
| B. |
| C. |
| Q.64) | Increased return of blood to the heart stretches the heart muscle, thereby |
| A. |
| B. |
| C. |
| Q.65) | Ventricular systole refers to |
| A. |
| B. |
| C. |
| Q.66) | Which of the following is least related to the vagus nerve |
| A. |
| B. |
| C. |
| Q.67) | Which of the following is least characteristic of sympathetic nerve stimulation |
| A. |
| B. |
| C. |
| Q.68) | Which of the following is descriptive of stroke volume? |
| A. |
| B. |
| C. |
| Q.69) | Milliliters per minute describes |
| A. |
| B. |
| C. |
| Q.70) | Which of the following is least related to a bradycardia |
| A. |
| B. |
| C. |
| Q.71) | Which of the following is least likely to increase cardiac output? |
| A. |
| B. |
| C. |
| Q.72) | Which of the following is least related to tachydysrhythmias |
| A. |
| B. |
| C. |
| Q.73) | Bradycardia is most likely to be caused by |
| A. |
| B. |
| C. |
| Q.74) | Atropine, a muscarinic blocker |
| A. |
| B. |
| C. |
| Q.75) | Starling's law relates force of myocardial contraction with |
| A. |
| B. |
| C. |
| Q.76) | Venodilation |
| A. |
| B. |
| C. |
| Q.77) | Digoxin is a (+) inotropic agent and therefore |
| A. |
| B. |
| C. |
| Q.78) | An elevation in pulmonary artery pressure is most likely to cause |
| A. |
| B. |
| C. |
| Q.79) | Which of the following is most likely to elicit a (+) inotropic effect, a (+) dromotropic effect and a (+) chronotropic effect? |
| A. |
| B. |
| C. |
| Q.80) | Which of the following is a consequence of backward failure associated with left-sided heart failure? |
| A. |
| B. |
| C. |
| Q.81) | Which of the following is most likely to cause an elevation of pulmonary capillary hydrostatic pressure? |
| A. |
| B. |
| C. |
| Q.82) | Which of the following is least likely to be used in the treatment of left ventricular failure and pulmonary edema? |
| A. |
| B. |
| C. |
| Q.83) | Jugular vein distension is most associated with |
| A. |
| B. |
| C. |
Take this quiz by clicking Start button on top.
