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16 Cards in this Set
- Front
- Back
equation of Kinetic Energy
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Mass (weight) x Velocity 2 (speed) divided by 2
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ballistics
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the study of projectile motion and its interactions with the gun, the air,and the object it contains.
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trajectory
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the path a projectile follows.
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drag
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the forces acting on a projectile in motion to slow its progress
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cavitation
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the outward motion of tissue due to a projectile's passage, resulting in a temporary cavity and vacuum.
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profile
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the size and shape of a projectile as it contacts a target; it is the energy exchange surface of the contact.
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caliber
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the diameter of a bullet expressed in hundredths of an inch (.22 caliber = 0.22 inches); the inside diameter of the barrel of a handgun, shotgun, or rifle.
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yaw
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swing or wobble around the axis of a projectile's travel.
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factors affecting energy exchange between a projectile and body tissue
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velocity, profile, stability, expansion and fragmentation, secondary impacts, and shape.
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factors associated with the damage pathway or a projectile wound
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direct injury, pressure shock wave, cavitation, temporary cavity, permanent cavity, and zone of injury.
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resiliency
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the connective strength and elasticity of an object or fabric.
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body regions deserving special attention with penetrating trauma
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extremities, abdomen, thorax, neck, and head.
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pericardial tamponade
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filling of the pericadial sac with fluid, which in turn limits the filling and function of the heart.
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cricothrotomy
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a surgical incision into the crocothyroid membrane, usually to provide an emergency airway.
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cricothyrostomy
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the introduction of a needle or other tube into the cricothyroid membrane, usually to provide an emergency airway.
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prognosis
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the anticipated outcome of a disease or injury.
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