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16 Cards in this Set

  • Front
  • Back
equation of Kinetic Energy
Mass (weight) x Velocity 2 (speed) divided by 2
ballistics
the study of projectile motion and its interactions with the gun, the air,and the object it contains.
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; it is the energy exchange surface of the contact.
caliber
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.
yaw
swing or wobble around the axis of a projectile's travel.
factors affecting energy exchange between a projectile and body tissue
velocity, profile, stability, expansion and fragmentation, secondary impacts, and shape.
factors associated with the damage pathway or a projectile wound
direct injury, pressure shock wave, cavitation, temporary cavity, permanent cavity, and zone of injury.
resiliency
the connective strength and elasticity of an object or fabric.
body regions deserving special attention with penetrating trauma
extremities, abdomen, thorax, neck, and head.
pericardial tamponade
filling of the pericadial sac with fluid, which in turn limits the filling and function of the heart.
cricothrotomy
a surgical incision into the crocothyroid membrane, usually to provide an emergency airway.
cricothyrostomy
the introduction of a needle or other tube into the cricothyroid membrane, usually to provide an emergency airway.
prognosis
the anticipated outcome of a disease or injury.