CH. 29 TRAUMA SYSTEMS AND MECHANISM OF INJURY Flashcards
the rate of change in velocity; speeding up
acceleration
the angle at which an object hits another
angle of impact
air bubbles in the arterial blood vessels
arterial air embolism
a tearing away or forcible separation
avulsing
the energy that results from sudden changes in pressure as may occur in a diving accident or sudden decompression in an airplane
barometric energy
the study of the physiology and mechanics of a living organism using the tools of mechanical engineering
biomechanics
the leading edge of the shock wave
blast front
an impact on the body by objects that cause injury without penetrating soft tissues or internal organs and cavities
blunt trauma
the shattering effect of a shock wave and its ability to cause disruption of tissues and structures
brisance
cavity formation; shock wave that pushes tissues in front of and lateral to the projectile and may not necessarily increase the wound size or cause permanent injury but can result in _____.
cavitation
the energy release as a result of a chemical reaction
chemical energy
a negative acceleration - that is, slowing down
deceleration
the energy delivered in the form of high voltage
electrical energy
the point at which a penetrating object enters the body
entry wound
the point at which a penetrating object leaves the body
exit wound
the acceleration of a body by the attraction of the earth’s gravitational force, normally 32.2.= ft/sec^2
gravity (g)
a bursting inward
implosion
anticipating the possibility of specific types of injury
index of suspicion
the energy associated with bodies in motion, expressed mathematically as half the mass times the square of the velocity
kinetic energy
the study of the relationship[ among speed, mass, vector, direction, and physical injury
kinetics
the principle that energy can be neither created nor destroyed; it can only change form
law of conservation of energy
the energy that results form motion or stored in an object
mechanical energy
the way in which traumatic injuries occur; the forces that act on the body to cause damage
mechanism of injury
a primary mechanism of tissue disruption from certain rifles in which pieces of the projectile break apart, allowing the pieces to create their own separate paths through tissues
missile fragmentation
trauma caused by generalized mechanisms which affect numerous body systems
multisystem trauma
the phase of an explosion in which pressure from the blast is less than atmospheric pressure
negative wave pulse
the principle that a body at rest will remain at rest unless acted on by an outside force
newton’s first law of motion
the principle that the force that an object can exert is the product of its mass times its acceleration
newton’s second law of motion
