Flow

Question 1

Two forms of energy in the circulatory system include:

Answer 1

1. Kinetic

2. Potential

Question 2

Kinetic Energy is the _____ of _______ .

Answer 2

energy of motion

Question 3

Kinetic energy is proportional to _____ and _____ _______

Answer 3

mass and square velocity

Question 4

Potential energy is

Answer 4

stored energy

Question 5

We measure potential energy by …

Answer 5

taking blood pressure

Question 6

The two components of potential energy are:

Answer 6

1. Hydrostatic pressure

2. Gravitational potential energy

Question 7

Hydrostatic pressure:

Answer 7

Gravity acting on a column of fluid.

Question 8

Hydrostatic pressure is ______ at its lowest point.

Answer 8

highest

Question 9

Gravitational potential energy is _______ at its highest point in a column of fluid.

Answer 9

highest

Question 10

The basic flow equation is

Answer 10

Q = change in pressure / resistance

Question 11

The more complicated flow equation is

Answer 11

Q = velocity x cross sectional area

Question 12

Flow happens when …

Answer 12

there is a pressure gradient

Question 13

Laminar Flow

Answer 13

discreet , orderly layers

Question 14

The layer flowing against the wall is the ______ .

Answer 14

slowest

Question 15

Two types of flow profiles include:

Answer 15

1. Parabolic

2. Plug / Blunt

Question 16

Parabolic flow is:

Answer 16

• at diastole
• high range in velocities
• inside stenosis
• small vessels

Question 17

Plug / Bunt flow is:

Answer 17

• at systole
• low range in velocities
• caused by increased energy from the heart
• at entrance to stenosis
• in vessels that are larger than 3mm