Hemodynamics

Question 1

What is hemodynamics

Answer 1

Question 2

Describe the ‘a’ wave of right atrial pressure (central venous pressure)

Answer 2

Question 3

Describe the ‘c’ wave of right atrial pressure (central venous pressure)

Answer 3

Question 4

Describe the ‘v’ wave of right atrial pressure (central venous pressure)

Answer 4

Question 5

What is pulmonary wedge pressure

Answer 5

Same as left atrial pressure

Question 6

How does velocity of flow affect blood flow

Answer 6

At steady state: cardiac output = venous return
-Because cardiovascular network is a closed system with great variation in vessel diameter and numerous branches of vessels
-Velocity and volume of blood flow in each individual blood vessel should change accordingly

Question 7

how does pressure affect blood flow

Answer 7

Question 8

How does viscosity affect blood fow

Answer 8

Question 9

how does resistance affect blood flow

Answer 9

-Length and viscosity are directly proportional to resistance
-Radius is inversely proportional to resistance and is the dominant factor in determining the resistance to flow
-Drastic reduction in diameter found in small arteries and arterioles, they are considered as the primary resistance vessels that regulate arterial blood pressure and flow

Question 10

Describe resistance in a system

Answer 10

Question 11

Describe resistance within arterial vasculature

Answer 11

Question 12

Describe autonomic control of resistance

Answer 12

Question 13

What is flow pattern

Answer 13

Question 14

Describe the relationship between laminar and turbulent flow in accordance with pressure drop

Answer 14

Question 15

How does hematocrit of the blood affect blood flow

Answer 15