Resistance opposes blood flow

Question 1

Flow through a tube is inversely proportional to

Answer 1

resistance flow (flow &1/R)

Question 2

Poiseuille’s Law R=8Ln/pie r^4) means

Answer 2

inversely proportional

Question 3

R &Ln/r^4 means

Answer 3

Directly proportional

Question 4

What is resistance directly proportional to?

Answer 4

Length (L) of the tube (blood vessel)

Question 5

Resistance increases as what increases?

Answer 5

length increases

Question 6

What is resistance also directly proportional to?

Answer 6

viscosity (n) or thickness, of the fluid (blood)

Question 7

Resistance increases as

Answer 7

viscosity increases

Question 8

is inversely proportional to tube radius to the fourth power

Answer 8

resistance

Question 9

When radius decreases

Answer 9

Resistance decreases
Vasoconstriction vs vasodilation

Question 10

Flow & delta P/R. Explain the relationship

Answer 10

Flow increases as the pressure gradient increases (directly proportional) or as resistance to flow decreases (inversely proportional)

Question 11

Flow usually means what

Answer 11

Flow rate

Question 12

The volume of blood that passes a given point in the system per unit time

Answer 12

Flow/ flow rate

Question 13

The distance a fixed volume of blood travels in a given period of time

Answer 13

Velocity of flow is what

Question 14

What is the formula for flow rate?

Answer 14

v = Q/A

Question 15

Q=

Answer 15

flow rate

Question 16

A =

Answer 16

cross- sectional area of the tube