Quiz 4 - Cardiac Physiology 2

Question 1

Which one of the following can have an effect on stroke volume?

Answer 1

Preload, Afterload, and Contractility = all of the above

Question 2

T/F: Epinephrine is a postive inotropic agent that increases contractility of the heart.

Answer 2

True

Question 3

The blood returning the right atrium is referred to as —

Answer 3

Preload

Question 4

Capillary exchange of materials that involve substances moving down the concentration gradient is known as…

Answer 4

Diffusion

Question 5

Which one of the following can have an effect on the afterload?

Answer 5

Diameter of the blood vessels, high blood pressure, and blood vessel length = all of the above

Question 6

Which one of the following plays a role in reabsorbtion of plasma back into the blood vessels?

Answer 6

Blood colloid osmotic pressure

Question 7

T/F: Dehydration can have an effect on the preload

Answer 7

True

Question 8

Microscopic vessels that connect arterioles to venules.

Answer 8

capillaries

Question 9

Frank Starlings law suggests:

Answer 9

the greater the muscle stretch, the greater the force of contraction

Question 10

Please provide 3 things that can have an effect on the stroke volume:

Answer 10

Preload
Contractility
Afterload