Biofluid Dynamics in Heart and Cardiovascular System Questions

Which of the following is true about heart function phases?

• Oxygenated blood enters from the pulmonary vein (lung) to the right atrium.

• Oxygenated blood is transported from the right atrium to the left ventricle.

• Oxygenated blood is pumped to the vena cava for systemic and coronary systems.

• Deoxygenated blood enters from the vena cava to the right atrium.

In the four phase cardiac cycle, which phase involves the highest blood pressure?

• Period of isovolumetric

  relaxation

• Filling period

• Period of ejection

• Period of isovolumetric

  contraction

Which of the following is NOT indicating heart problems?

• Ventricular Tachycardia

• Mature Ventricular

  Complex

• Atrial Fibrillation

• AV Block

What are the two methods used to measure ventricular pressure?

• Swan-Ganz and Simple

  Catheter

• Doppler Ultrasound and

  Echocardiography

• Catheter and Microelectrodes

• Simple Catheter and Doppler

  Ultrasound

How is the stroke volume (SV) calculated?

• SV = LVESV - LVEDV

• SV = LVEDV - LVESV

• SV = LVEDV + LVESV

• SV = LVEDV / LVESV

These are valves that connect the atriums to the ventricles.

• Semilunar or inflow valve

• AV or outflow valve

• AV or inflow valve

• Semilunar or outflow valve

What is the rate of the oxygen consumption per tissue mass of the human heart at rest?

• 10 mL O2/min/100g

• 10 mL O2/min/10g

• 100 mL O2/min/100g

• 100 mL O2/min/10g

Which of the following is true for coronary blood flow?

• The blood flow within left coronary arteries decreases during diastole and

  increases during systole.

• The blood flow within left coronary arteries increases during diastole and

  decreases during systole.

• The blood flow within left coronary arteries is constant during diastole and

  systole.

• The blood flow within right coronary arteries increases during diastole and

  decreases during systole.

In this disease, the heart valves do not close completely, which permits blood to flow

backward across the valves.

• Heart Valve Stenosis

• Valve Regurgitation

• Heart Failure

• Hypotension

What is being implied by the picture shown below?

• (A) Blood flows from the atrium towards the ventricle and (B) the backflow of

  blood causes the heart valve to close

• (A) Blood flows unidirectionally but (B) it has tendencies of flowing backwards

• (A) High pressure in the atrium helps to open the heart valve and (B) as the

  blood accumulates in the ventricle, high pressure in the ventricle helps to

  close the valve.

• All of the above