Chapter 18 - C HAPTER 18: P ENETRATING TRAUMA Penetrating...

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CHAPTER 18: PENETRATING TRAUMA Penetrating trauma - injury caused by an object breaking the skin and entering the body. Types of Weapons Low-energy/low-velocity - knives, arrows Medium-energy/medium-velocity - low powered rifles, handguns, shotguns High-energy/high-velocity - assault rifles Physics of Penetrating Trauma Kinetic Energy = Mass x Velocity²/2 Law of Conservation of Energy- “Energy can neither be created nor destroyed. It only changes from one form to another”
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Ballistics - the study of projectile motion and its interactions w/the gun, the air, and the object it contacts. Trajectory - the path a projectile follows Drag - the forces acting on a projectile in motion to slow its progress Cavitation - the outward motion of tissue due to a projectile’s passage, resulting in a temporary cavity and vacuum. Profile - the size and shape of a projectile as it contacts a target. o
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Chapter 18 - C HAPTER 18: P ENETRATING TRAUMA Penetrating...

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