Fluid Mechanics in Medicine

Video Lectures

Displaying all 12 video lectures.
Lecture 1
Density and Specific Gravity
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Density and Specific Gravity
An overview of the meaning of density and specific gravity, along with their calculations and some example problems. The relevance of specific gravity in analyzing urine is also discussed.
Lecture 2
Archimedes' Principle and Buoyancy
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Archimedes' Principle and Buoyancy
A review of Archimedes' Principle and the buoyant force, including 2 worked examples, and a brief description of how the principle of neutral buoyancy applies to the brain and cerebrospinal fluid.
Lecture 3
Hydrostatic Pressure
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Hydrostatic Pressure
A description of hydrostatic pressure, along with the equation to calculate it, and an example.
Lecture 4
Hydrostatic Pressure: Medical Applications
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Hydrostatic Pressure: Medical Applications
A review of some of the uses of pressure measurements in medicine, with a focus on measuring the jugular venous pressure and bladder pressure.
Lecture 5
Pascal's Law
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Pascal's Law
A video reviewing Pascal's Law, including several classic examples including simple hydraulics.
Lecture 6
The Continuity Equation
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The Continuity Equation
A simplified derivation and explanation of the continuity equation, along with 2 examples.
Lecture 7
The Bernoulli Equation
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The Bernoulli Equation
A brief description of the Bernoulli equation and Bernoulli's principle, with 2 examples, including one demonstrating the Venturi effect.
Lecture 8
The Bernoulli Equation: Medical Applications
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The Bernoulli Equation: Medical Applications
An overview of several medical applications of the Bernoulli Equation, including a description of the Venturi mask, and how echocardiography is used to estimate pulmonary artery pressure.
Lecture 9
Ohm's Law and Hemodynamics
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Ohm's Law and Hemodynamics
A description of how to apply Ohm's Law from E&M to understand hemodynamics, specifically the relationship between blood pressure, cardiac output, and systemic vascular resistance. I also briefly cover the different forms of shock.
Lecture 10
Viscosity and Poiseuille's Law
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Viscosity and Poiseuille's Law
A description of viscosity and Poiseuille's Law, which relates the pressure gradient along an enclosed conduit to the viscosity, length of conduit, radius of conduit, and fluid low. Several examples of its application in medicine are discussed, including rapid infusion of fluids, asthma attacks, hyperviscosity syndrome, and leukostasis.
Lecture 11
Reynolds Numbers and Turbulence
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Reynolds Numbers and Turbulence
A review of the meaning of turbulence, and calculation of the Reynolds number for fluid moving through a tube. Focus it given to the concept's relationship to the heart murmurs, as well as the theoretical benefits of breathing a helium/oxygen mixture called Heliox.
Lecture 12
Surface Tension and Surfactant
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Surface Tension and Surfactant
A discussion of surface tension, with emphasis on the role surfactant has in reducing surface tension within the lungs, and the consequence this has for respiratory mechanics.