Hemodynamics of the Cardiovascular System

Question 1

Blood flow velocity is fastest in the ___ and slowest in the ____

Answer 1

Fastest - aorta

Slowest - capillaries

Question 2

What is the formula to determine the blood flow?

Answer 2

BP = CO x TPR

Question 3

A 50% change in the radius of the artery results to a ___ decrease in the blood flow

Answer 3

1/16

Resistance = (8nl/pi r^4)

Question 4

Turbulent blood flow is decreased by a decrease in _____ (viscosity, velocity)

Answer 4

viscosity

Increase in velocity results to a turbulent blood flow

Question 5

What is the formula to determine the capacitance?

Answer 5

C = V/P

Capacitance decreases with age

Question 6

The ratio of arterial compliance to venous compliance is ____

Answer 6

1:20

Question 7

The formula for the mean arterial pressure

Answer 7

MAP = 2/3diastole + 1/3systole

Question 8

The formula for pulse pressure

Answer 8

SV/Arterial compliance

SPP = Systolic pressure - Diastolic Pressure

Question 9

A decrease in arterial radius results in ___ of the CO

Answer 9

decrease in CO

Question 10

the blood velocity is fastest in the center in ___ blood flow

Answer 10

laminar

Question 11

in laminar blood flow, the blood velocity is slowest at the? ____

Answer 11

vessel walls

Question 12

A Reynold’s number >2,000 is associated with a ____ blood flow

Answer 12

irregular, disorderly

“turbulent”

Question 13

bruits have a ___ reynold’s number

Answer 13

> 2000

high

Question 14

Anemia is associated with a ____ blood flow

Answer 14

turbulent

Question 15

Atherosclerotic blood vessel is associated with a ____ blood flow

Answer 15

turbulent

Question 16

The higher the viscosity of the blood is associated with a ___ blood flow

Answer 16

laminar blood blow

Question 17

The smaller arterial diameter is associated with ___ blood flow

Answer 17

turbulent blood flow because of increased blood velocity from decreased blood vessel radius

Question 18

what parameter in CV system decreases with age?

Answer 18

capacitance

Question 19

the systolic pressure that is higher than the aorta is located in ___

Answer 19

large arteries

Question 20

[name the formula]

SV/Arterial compliance

Answer 20

pulse pressure

Question 21

[name the formula]

= systolic pressure / arterial compliance

Answer 21

pulse pressure