vascular final pt.2 Flashcards
Blood within pulmonary veins
Contains high oxygen content and flows into the left atrium
Intra-abdominal pressure is decreased with
Expiration
Continuously moves forward throughout the cardiac cycle
Low resistance arteries
What is the pathology
Pseudoaneurysm
Laminar flow describes flow that is
Normal flow. Smooth adjacent lyers
How long does is take for TIA (stroke) to resolve
24hrs
A critical stenosis is one where
Both pressure and flow decrease
Anechoic describes a region which
Does not return any echoes
Expiration causes intraabdominal pressure to
Decrease
Anterior is defined as
Toward the front
In the vascular system, which are the main two factors that result in energy losses
Friction and Viscosity
For ABI highest ankle pressures in each leg is compared to highest arm pressure for either arm. T.F
True
According to the Bernoulli principle, if the velocity of blood goes up, what must happen
There must be a pressure decrease
Most common varient for the aortic arch
Bovine Arch
The amount of fluid moving past a point at a specific time
Volumetric flow rate
In which blood vessels do nutrients and waste exchange occur
Capillaries
ABI of <0.3
Critical; Impending Gangrene
Which term is not a component within the definition of Poisuille Law
Inertia
Segmental pressure difference > 20-30mmHg
Occlusion
A venule contains which vessel layers
Tunica adventia, media, intima
Abbreviation for PSV
Peak systolic velocity
Doubling in length of stenosis results in
A 2 fold increase in energy loss accross the stenosis
A change in_______ will have the greatest change in blood flow
The radius of a vessel
Flow characterized by multiple velocity and direction components is called
Turbulent flow
