Physics of ANESTHESIA Part I | Barash Flashcards
The blood supply to the LV is directly dependent on the difference between the aortic diastolic pressure and LV end-diastolic pressure (coronary perfusion pressure) and inversely related to the vascular resistance to flow, which varies to the FOURTH power of the vessel radius. This is pertaining to:
A. Frank-Starling forces
B. Law of Laplace
C. Poiseuille law
C. Poiseuille law
Describes the factors that determine left ventricular wall stress, which is a major determinant of myocardial oxygen demand. Tension development in each myocyte increases LV wall stress that is transformed into pressure when applied to a fluid.
A. Frank-Starling forces
B. Law of Laplace
C. Poiseuille law
B. Law of Laplace
What is the formula of the law of laplace?
2T/R
This law describes the surface tension at an air-fluid interface produces forces that tend to reduce the area of interface. For a bubble to remain inflated, the gas pressure within the bubble is contained by surface tension and must be higher than the surrounding gas pressure:
A. Frank-Starling forces
B. Law of Laplace
C. Poiseuille law
B. Law of Laplace
This refers to the fact that each gas in a mixture will exert its own partial pressure, and in sum will equal the total pressure:
A. Dalton’s law
B. Henry’s Law
C. Poiseuille law
D. Charle’s Law
A. Dalton’s law