Physics of fluid fllow

Question 1

Blood flows from ______pressure to ______pressure

Answer 1

High to low pressure s

Question 2

Flow through a tube is directly proportional to?

Answer 2

the pressure gradient

Question 3

The higher the pressure gradient the_____the fluid flow

Answer 3

greater

Question 4

Blood flows____a pressure gradient

Answer 4

down

Question 5

Blood flows down a pressure gradient. What is the pressure in units at high and units at low? and what places

Answer 5

High=93mmHg (millimeter of mercury) in the aorta to a low of a few mm Hg in the vena cavae

Question 6

Flow of blood using vesselss beginning at aorta and ending at Venae Cavae

Answer 6

Aorta—> arteries —>arterioles—>capillaries—.venules—> veins—>vena cavae

Question 7

Pressure exerted on the walls of the container of the fluid within a container

Answer 7

hydrostatic pressure

Question 8

What is hydrostatic pressure proportional to?

Answer 8

The height of the water column

Question 9

What happens once fluid flows through the system and why?

Answer 9

Pressure falls with distance as energy is lost because of friction. This happens in the cardiovascular system.

Question 10

Fluid flow through a tube depends on what?

Answer 10

pressure gradient

Question 11

fluid flows onlyif there is what types of gradient (delta P)

Answer 11

positive pressure gradient

Question 12

When the tube has no pressure what results?

Answer 12

No flow
Delta P=0, so no flow

Question 13

Flow depends on pressure gradient (delta P), NOT

Answer 13

absolute pressure. Delta P is equal in these tubes so flow is the same
(see image on slide)