the measurement of cardiac function; all of the following are true except A. Cardiac output is a measure of the amount of blood pumped by each ventricle in 1 minute B. The heart rate is the number of contractions of the ventricles each minute. C. The stroke volume is the amount of blood ejected from each ventricle with each contraction D. The cardiac output will exceed 5 liters with an increase in HR in all cases Choose the correct answer

What is the cardiac output of a heart when the heartbeat rate is 60 beat.min-1, the diastolic pressure in the aorta is 80 mm Hg, and the stroke volume is 80 mL.beat-1?   A. 4,800 mm Hg.min-1   B. 6,400 mL.mm Hg-1   C. 4,800 mL.min-1   D. 1.33 mL.beat-1   E. 0.75 mL.min-1

Table 2: Resting and Exercising Cardiac Cycle Length, EDV, and ESV Resting Values Exercising Values Cardiac cycle length (msec) EDV(mL) ESV(mL) Cardiac cycle length (msec) EDV(mL) ESV(mL) Subject 1 839 136 68 452 138 35 Subject 2 831 145 73 392 142 33 Subject 3 855 141 68 414 140 35 Averages 000 Equations (fx) Use these formulas for making your calculations. Round your answer to the nearest tenth. Averages Add the values from the three subjects; divide by three. Your data will not be saved until the table is completely filled in. Table 3: Resting and Exercising HR, SV, and co Resting Values Exercising Values HR (strokes per min) SV (mL) SV(L) co (L/min) HR (strokes per min) sV (mL) SV(L) cO (L/min) Subject 1 Subject 2 Subject 3 Averages Equations (fx) Use these formulas for making your calculations. Round your answer to the nearest tenth. Averages Add the values from the three subjects; divide by three. Heart Rate HR = 60 (sec/min) x 1000 (msec/sec) /cardiac cycle length (msec); HR is…

According to the Frank-Starling law of the heart, an increase in right atrial pressure and end-diastolic volume will result in an increase in right ventricular fiber length and cardiac output. Group of answer choices True False

30. Early defibrillation is critical for individuals with sudden cardiac arrest for the following reasons EXCEPT: O A common initial rhythm in out-of-hospital witnessed sudden cardiac arrest is ventricular fibrillation (VF). The most effective treatment for ventricular fibrillation (VF) is electrical defibrillation. O Individuals in asystole respond well to early defibrillation. O The probability of successful defibrillation decreases quickly over time.

(please type answer).

During atrial fibrillation: A. The EKG shows an exaggerated P wave. B. There is a noticeable increase in the regularity of beating. OC. The ventricle undergoes reentrant refractoriness. OD. None of the above. OE. All of the above.

Decreasing blood pressure to the Aortic Arch & Carotid Sinuses should reflexly: decrease heart rate & increase stroke volume increase vascular resistance & decrease heart rate decrease stroke volume & decrease vascular resistance A. B. C. D. increase cardiac output & increase vascular resistance Using the Baro-receptor feedback mechanism, the parasysmpathetic nervous system can affect which of the following variables to adjust blood pressure? A. heart rate stroke volume vascular resistance B. C. D. contractility An individual possessing only the A & B antigens is said to be of which blo fype? A. A+ В. AB+ С. AB- D.

Heart failure occurs when   a. the cardiac output is 15 liters per minute when you are watching television   b. the cardiac output is 5 liters per minute when you are running as fast as  you can on the treadmill.    c. the cardiac outout does not change based on the energy expenditure   d. all of the above

Which of the following changes to blood flow is expected to occur as a result of dynamic exercise? Group of answer choices An increase in cardiac output of up to 5X normal An increase in the percent of blood flow to the skeletal muscle compared to at rest All of these occur An increase in ejection fraction