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Author Question: What in essence is Frank-Starling's law of the heart? a. The greater the stretch, the stronger ... (Read 39 times)

deesands

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on: Jul 16, 2018
What in essence is Frank-Starling's law of the heart?
 
  a. The greater the stretch, the stronger the contraction.
  b. The less the afterload, the greater the ejec-tion fraction.
  c. Describes the inverse relationship between diameter and resistance to flow.
  d. Curves show the hysteresis variations be-tween systole and diastole.

Question 2

What circulatory system is referred to as a low-pressure, low-resistance system?
 
  a. Left heart
  b. Pulmonary vascular bed
  c. Right heart
  d. Systemic vascular bed


soda0602

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
According to Frank-Starling's law, the more a cardiac fiber is stretched, the greater the tension it generates when contracted.

Answer to Question 2

ANS: B
The right side of the heart provides the pressures needed to drive blood through the low-resistance, low-pressure pulmonary circulation.


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