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MOCK TEST #5 CCI RCS Questions and answers. Latest version. Rated A £8.54   Add to cart

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MOCK TEST #5 CCI RCS Questions and answers. Latest version. Rated A

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MOCK TEST #5 CCI RCS Questions and answers. Latest version. Rated A the study of blood moving through the circulatory system - hemodynamics indicates the volume of blood moving during a particular time - flow (also called volume flow rate) units for flow - L/min indicates the speed ...

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  • January 31, 2023
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MOCK TEST #5 CCI RCS Questions and
answers. Latest version. Rated A


the study of blood moving through the circulatory system - ✔✔hemodynamics



indicates the volume of blood moving during a particular time - ✔✔flow (also called volume flow rate)



units for flow - ✔✔L/min



indicates the speed of a fluid moving from one location to another - ✔✔velocity



units for velocity - ✔✔cm/s



3 basic forms of blood flow - ✔✔1. pulsatile

2. phasic

3. steady



occurs when blood moves with a variable velocity due to cardiac contraction, and appears in arterial
circulation - ✔✔pulsatile flow



occurs when blood moves with a variable velocity due to respiration, and appears in venous circulation -
✔✔phasic flow



occurs when a fluid moves at a constant speed or velocity - ✔✔steady flow

,flow that occurs when the flow streamlines are aligned and parallel - ✔✔laminar



when are laminar flow patterns found? - ✔✔normal physiological states



2 forms of laminar flow - ✔✔plug flow- occurs when all of the layers and blood cells travel at the same
velocity

parabolic- bullet-shaped profile where the velocity is highest in the center of the lumen



number that predicts whether flow is laminar or turbulent - ✔✔Reynolds number



What is the Reynolds number for laminar flow? - ✔✔less than 1500



flow characterized by chaotic flow patterns in many different directions and speeds - ✔✔turbulent flow



when is turbulence commonly observed? - ✔✔cardiovascular *pathology* and elevated blood velocities



turbulent flow profiles may be seen downstream from a significant _______ in a vessel - ✔✔stenosis



sounds that are associated with turbulent flow - ✔✔murmur/bruit



tissue vibration associated with turbulence - ✔✔thrill



what is the Reynolds number for turbulent flow? - ✔✔greater than 2000



Term for blood that is moving from regions of *higher* energy to *lower* energy. - ✔✔energy gradient



energy forms that are associated with blood - ✔✔1. kinetic

2. pressure

, 3. gravitational



the total energy at a specific location within the circulation is the _____ of all three energy forms -
✔✔sum



energy that is associated with a moving object - ✔✔kinetic



2 factors for kinetic energy - ✔✔1. mass of object

2. the speed at which it moves



form of energy that is stored - ✔✔pressure energy (aka potential energy)



form of energy that is stored- and is elevated - ✔✔gravitational



thickness of a fluid - ✔✔viscosity



the tendency of a fluid to resist changes in its velocity is related to - ✔✔inertia



narrowing in the lumen of a vessel - ✔✔stenosis



downstream turbulence that results from stenosis - ✔✔post-stenotic turbulence



the relationship between velocity and pressure in a moving fluid - ✔✔Bernoulli's Principle



velocity of blood is highest at the _______ part of the vessel - ✔✔narrowest



formula for pressure gradient - ✔✔pressure gradient= flow x resistance

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