Abstract
Physics is everywhere in our daily life. It helps in understanding concepts of surgery easily. Application of physics in surgical field is very helpful especially for a surgeon. In this article we have summarized some common laws of physics, many of them we see in our operation theatre like Poiseuille’s Law, Pascal’s Law, Laplace’s Law, Bernoulli Equation or Theorem, Ohm’s Law, Floating Ball Valve Mechanism, Newton’s Law of Cooling, Laws of Vector and Air-Water Seal System. The application and understanding of these laws would make a surgeon think more like a scientist. Doppler Effect is used in ultrasonography to evaluate the direction and velocity of blood flow. Reynolds number (NR) is used to predict whether the flow of blood will be laminar or turbulent.
 The laws of Thermodynamics, Mechanics, and Vectors as they apply to soft and bony tissues. These include the Laplace’s Law as applied to colonic perforation and esophageal varices etc. In Electrocautery, alternating current is passed through a resistant metallic wire electrode and generates heat. The heated electrode is used to achieve hemostasis and dissection. The Pascal’s Law finds use in hernia repair
 Keywords: Physics, Surgery, Fundamentals.
Highlights
In this article we have summarized some common laws of physics, many of them we see in our operation theatre like Poiseuille’s Law, Pascal’s Law, Laplace’s Law, Bernoulli Equation or Theorem, Ohm’s Law, Floating Ball Valve Mechanism, Newton’s Law of Cooling, Laws of Vector and Air-Water Seal System
Physics is the most fundamental physical science and it has contributed in almost all scientific streams
Health science benefited very much from its concepts. In this age of multidisciplinary collaboration, many physics professionals working with healthcare experts to face the ever growing challenges of the modern Health Science
Summary
Physics is the most fundamental physical science and it has contributed in almost all scientific streams. Health science benefited very much from its concepts. Bernoulli’s principle [1] formulated by Daniel Bernoulli (1700–1782) states that as the speed of a moving fluid (liquid or gas) increases, the pressure within the fluid decreases and vice versa. This is an application of the law of ‘conservation of mechanical energy’ (which in turn is made up of potential energy and kinetic energy) to the flow of an ideal fluid. Fluid tends to find the easiest pathway, and relieving the distal obstruction according to Bernoulli’s principle will increase the forward flow, causing a negative pressure at the junction of the fistulous tract and promotes its closure
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