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Flashcards in Doppler Deck (19):
0

The direction that a fluid is travelling.

Flow

1

The rate of change of the displacement, the difference between the final and initial position of an object.

Velocity

2

A flow with periodic variations

Pulsatile Flow

3

Blood moves with a varying velocity, such as changes that occur with respiration.

Phasic Flow

4

When blood moves at the same speed

Steady flow

5

A way to describe venous or arterial flow that moves in a uniform direction and moves in concentric rings

Laminar Flow

6

Flow with all fluid portions traveling with the SAME flow speed and direction.

Plug Flow

7

Any flow that is not in a uniform direction; chaotic, random blood flow moving at different speeds and different directions.

Turbulent Flow

8

The unusual sound that blood makes when it rushes past an obstruction in an artery when the sound is auscultation.

Bruit.

9

A palpable vibration.

Thrill

10

A dimension less quantity that is used to help predict similar flow patterns in different fluid flow situations.

Reynolds Number (Re)

11

Any change in energy over time or space.

Energy Gradient

12

Kinetic, Pressure, Gravitational

Forms of energy.

13

Viscous, frictional, inertial

Energy losses in circulation.

14

An abnormal narrowing of a blood vessel.

Stenosis

15

An increase in the speed of a fluid occurs simultaneously with a drop in pressure.

Bernoulli's Principle

16

The current through a conductor between two points is directly proportional to the potential difference across the two points

Ohm's Law

17

In a fluid at rest, all frictional stresses vanish

Hydrostatic Pressure.

18

Quiet inspiration is associated with a fall in femoral venous blood flow.

Breathing and Venous Flow