Fluid Mechanics in Medicine

Video Lectures

Displaying all 12 video lectures.
Lecture 1
Density and Specific Gravity
Play Video		 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
Play Video		 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
Play Video		 Hydrostatic Pressure
A description of hydrostatic pressure, along with the equation to calculate it, and an example.
Lecture 4
Hydrostatic Pressure: Medical Applications
Play Video		 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
Play Video		 Pascal's Law
A video reviewing Pascal's Law, including several classic examples including simple hydraulics.
Lecture 6
The Continuity Equation
Play Video		 The Continuity Equation
A simplified derivation and explanation of the continuity equation, along with 2 examples.
Lecture 7
The Bernoulli Equation
Play Video		 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
Play Video		 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
Play Video		 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
Play Video		 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
Play Video		 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
Play Video		 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.