Notes in 07. Phys Hemodynamics

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Status	Last Update	Fields
Published	02/28/2025	{{c1::Capillaries::Arteries/Capillaries/Veins}} account for the most surface area of blood
Published	02/28/2025	{{c1::Veins::Arteries/Capillaries/Veins}} contain the most "unstressed" volume of blood
Published	02/28/2025	{{c1::Arteries::Arteries/Capillaries/Veins}} contain the most "stressed" volume of blood under high pressure
Published	02/28/2025	Equations: Velocity (v){{c1::v = Q / A}}
Published	02/28/2025	Equations: Blood Flow (Q){{c1::Q = ΔP / R}}
Published	02/28/2025	Equations: Resistance (Poiseuille's law)R = {{c1::ΔP / Q}}R = 8𝜂 (viscosity) x {{c2::length}} / 𝜋{{c2::𝑟4}}
Published	02/28/2025	Stenosis of a vessel in atherosclerosis = decrease in area = {{c1::increase::increase/decrease}} in velocity
Published	02/28/2025	Blockage from an aneurysm = increase in area = {{c1::decrease::increase/decrease}} in velocity
Published	02/28/2025	An increase in resistance = {{c1::decrease::increase/decrease}} in blood flow (Q)
Published	02/28/2025	An increase in vessel length = {{c1::increase::increase/decrease}} in resistance = {{c1::decrease::increase/decrease}} in blood flow and {{c1::increas…
Published	02/28/2025	Vasodilation = increase in vessel radius = {{c1::decrease::increase/decrease}} in resistance
Published	02/28/2025	Hypertension = increase in blood pressure = {{c1::increase::increase/decrease}} in resistance
Published	02/28/2025	If more vessels are added in parallel = total resistance of system is {{c1::less::less/more}} than the resistance in a single vessel
Published	02/28/2025	Capillaries are arranged in {{c1::parallel::series/parallel}} so their combined resistance is much lower
Published	02/28/2025	Reynolds number < {{c2::2000}} indicates {{c1::laminar::laminar/turbulent}} flow
Published	02/28/2025	Reynolds number > {{c2::3000}} indicates {{c1::turbulent::laminar/turbulent}} flow
Published	02/28/2025	Equations: Capacitance (Compliance) C = {{c1::V / P}}
Published	02/28/2025	Compliance:{{c1::Veins::Arteries/Aging Arteries/Veins}} have the highest compliance {{c1::Aging Arteries::Arteries/Aging Arteries/Veins}} ha…
Published	02/28/2025	Venoconstriction {{c1::decreases::increases/decreases}} capacitance = {{c1::decreases::increases/decreases}} volume of blood in veins = {{c1::increase…
Published	02/28/2025	Pulse Pressure:Pulse pressure = {{c1::Diastolic}} pressure - {{c1::Systolic}} pressure Dicrotic notch = closing of {{c2::aortic}} valve after ret…
Published	02/28/2025	Pulmonary circulation has a lower pressure than systemic circulation and since flow (Q) is the same, pulmonary resistance has to be much {{c1::lower::…
Published	02/28/2025	Norepi and Epi lead to vasoconstriction of vascular smooth muscle = {{c1::increases::increases/decreases}} vascular resistance = {{c1::increase::incre…
Published	02/28/2025	Angiotensin II causes {{c1::vasoconstriction::vasoconstriction/dilation}} = increase in resistance and blood pressure
Published	02/28/2025	SNS Effects Norepi/Epi binding to {{c2::α-1}} adrenergic receptors = {{c1::vasoconstriction::vasoconstriction/dilation}} = in veins, skin, GI&nbs…
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