Hemodynamics Flashcards
Study of blood flow throughout body
Hemodynamics
Outer layer of connective tissue that contains vasa vasorum
Túnica adventitia / Túnica Externa
Normal arterial flow, parabolic shape, highest velocity in center. Starts as plug flow.
Laminar flow
Fluid moved from high to low pressure. What is the energy level difference between 2 points called?
Pressure gradient
Decrease resistance = ________ flow rate
Increase
Total energy =
PE + KE + GE
Highest gravitational potential energy occurs when
Standing.
Próx to stenosis: PE high, KE low. Highest total energy
In stenosis: PE dec, KE inc, energy lost as heat
Distal to stenosis: PE inc, KE dec. total energy lowest.
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Pulsatility Index
(Peak systolic - end diastolic)/mean
Prolonged, slow systolic acceleration with small systolic amplitude and rounding of systolic peak. Occurs distal to stenosis.
Tardus Parvus