Lecture 18

Question 1

Venous return equation

Answer 1

VR= (P venous - P central) / TVR

Question 2

What is TVR

Answer 2

Resistance in vena cava

Question 3

What is compliance?

Answer 3

Ability of a vessel to increase in volume without recoiling to its original size

Question 4

Compliance equation

Answer 4

Compliance= volume / pressure

Question 5

3 methods of increasing venous return

Answer 5

1. Venous valves
   -Prevent blood from going backwards
2. Muscle pump
   -Muscle constricts veins, forcing blood to the heart
3. Respiratory pump
   -Inhaling increases abdominal pressure and
   decreases thoracic pressure, creating a gradient
   that forces blood to the heart

Question 6

What can cardiac output reach during exercise

Answer 6

20+L/min

Question 7

True or False: Exercise training increases all aspects of the heart
(ventricular mass, EDV, wall thickness, SV, etc.)

Answer 7

TRUE