Chp 29

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johnnyo62
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267763
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Chp 29
Updated:
2014-03-24 20:02:03
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  1. The rate of change in velocity; speeding up
    acceleration
  2. The angle at which an object hits another; this characterizes the force vectors involved and has a bearing on patterns of energy dissipation.
    angle of impact
  3. Air bubbles in the arterial blood vessels.
    arterial air embolism
  4. A tearing away or forcible separation.
    avulsing
  5. The energy that results from sudden changes in pressure as may occur in a diving accident or sudden decompression in an airplane.
    barometric energy
  6. The leading edge of the shock wave.
    blast front
  7. An impact on the body by objects that cause injury without penetrating soft tissues or internal organs and cavities.
    blunt trauma
  8. The shattering effect of a shock wave and its ability to cause disruption of tissues and structures.
    brisance
  9. Cavity formation; shock waves that push 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.
    cavitation
  10. The energy released as a result of a chemical reaction.
    chemical energy
  11. A negative acceleration—that is, slowing down.
    deceleration
  12. The energy delivered in the form of high voltage.
    electrical energy
  13. The point at which a penetrating object enters the body.
    entry wound
  14. The point at which a penetrating object leaves the body, which may or may not be in a straight line from the entry wound.
    exit wound
  15. The acceleration of a body by the attraction of the earth’s gravitational force, normally 32.2 ft/sec2.
    gravity
  16. A bursting inward.
    implosion
  17. Anticipating the possibility of specific types of injury.
    index of suspicion
  18. The energy associated with bodies in motion, expressed mathematically as half the mass times the square of the velocity.
    kinetic energy
  19. The study of the relationship among speed, mass, vector direction, and physical injury.
    kinetics
  20. The principle that energy can be neither created nor destroyed; it can only change form.
    law of conservation of energy
  21. The energy that results from motion (kinetic energy) or that is stored in an object (potential energy).
    mechanical energy
  22. 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
  23. Trauma caused by generalized mechanisms which affect numerous body systems.
    multisystem trauma
  24. Drawing of air into the lungs; airflow from a region of higher pressure (outside the body) to a region of lower pressure (the lungs); occurs during normal (unassisted breathing).
    negative-pressure ventilation
  25. The principle that a body at rest will remain at rest unless acted on by an outside force.
    Newton’s first law of motion
  26. 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
  27. The tissue displacement that occurs as a result of low-displacement shock waves that travel at the speed of sound in tissue.
    pathway expansion
  28. Injury caused by objects that pierce the surface of the body, such as knives and bullets, and damage internal tissues and organs.
    penetrating trauma
  29. The path of crushed tissue produced by a missile traversing part of the body.
    permanent cavity
  30. The phase of the explosion in which there is a pressure front with a pressure higher than atmospheric pressure.
    positive wave pulse
  31. The amount of energy stored in an object, the product of mass, gravity, and height, that is converted into kinetic energy and results in injury, such as from a fall.
    potential energy
  32. Pulmonary trauma resulting from short-range exposure to the detonation of high explosives.
    pulmonary blast injuries
  33. A scoring system used for patients with head trauma.
    Revised Trauma Score (RTS)
  34. An applied force or pressure exerted against the surface and layers of the skin as tissues slide in opposite but parallel planes.
    shearing
  35. Delaminating or breaking off into chips and pieces.
    spalling
  36. Acute physiologic and structural change that occurs in a victim as a result of the rapid dissipation of energy delivered by an external force.
    trauma
  37. A score that relates to the likelihood of patient survival with the exception of a severe head injury. It is calculated on a scale from 1 to 16, with 16 being the best possible score. It takes into account the Glasgow Coma Scale score, respiratory rate, respiratory expansion, systolic blood pressure, and capillary refill.
    trauma score
  38. The eardrum; a thin, semitransparent membrane in the middle ear that transmits sound vibrations to the internal ear by means of the auditory ossicles.
    tympanic membrane
  39. The distance an object travels per unit time.
    velocity 
  40. A pattern of automobile-pedestrian injuries in children and people of short stature in which (1) the bumper hits pelvis and femur, (2) the chest and abdomen hit the grille or low hood, and (3) the head strikes the ground.
    Waddell triad
  41. An injury to the cervical vertebrae or their supporting ligaments and muscles, usually resulting from hyperextension as a result of the head moving abruptly forward or backward; can be difficult to differentiate from injuries that involve cervical bony structures and the spine.
    whiplash

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