CH. 29 TRAUMA SYSTEMS AND MECHANISM OF INJURY

Question 1

the rate of change in velocity; speeding up

Answer 1

acceleration

Question 2

the angle at which an object hits another

Answer 2

angle of impact

Question 3

air bubbles in the arterial blood vessels

Answer 3

arterial air embolism

Question 4

a tearing away or forcible separation

Answer 4

avulsing

Question 5

the energy that results from sudden changes in pressure as may occur in a diving accident or sudden decompression in an airplane

Answer 5

barometric energy

Question 6

the study of the physiology and mechanics of a living organism using the tools of mechanical engineering

Answer 6

biomechanics

Question 7

the leading edge of the shock wave

Answer 7

blast front

Question 8

an impact on the body by objects that cause injury without penetrating soft tissues or internal organs and cavities

Answer 8

blunt trauma

Question 9

the shattering effect of a shock wave and its ability to cause disruption of tissues and structures

Answer 9

brisance

Question 10

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 _____.

Answer 10

cavitation

Question 11

the energy release as a result of a chemical reaction

Answer 11

chemical energy

Question 12

a negative acceleration - that is, slowing down

Answer 12

deceleration

Question 13

the energy delivered in the form of high voltage

Answer 13

electrical energy

Question 14

the point at which a penetrating object enters the body

Answer 14

entry wound

Question 15

the point at which a penetrating object leaves the body

Answer 15

exit wound

Question 16

the acceleration of a body by the attraction of the earth’s gravitational force, normally 32.2.= ft/sec^2

Answer 16

gravity (g)

Question 17

a bursting inward

Answer 17

implosion

Question 18

anticipating the possibility of specific types of injury

Answer 18

index of suspicion

Question 19

the energy associated with bodies in motion, expressed mathematically as half the mass times the square of the velocity

Answer 19

kinetic energy

Question 20

the study of the relationship[ among speed, mass, vector, direction, and physical injury

Answer 20

kinetics

Question 21

the principle that energy can be neither created nor destroyed; it can only change form

Answer 21

law of conservation of energy

Question 22

the energy that results form motion or stored in an object

Answer 22

mechanical energy

Question 23

the way in which traumatic injuries occur; the forces that act on the body to cause damage

Answer 23

mechanism of injury

Question 24

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

Answer 24

missile fragmentation

Question 25

trauma caused by generalized mechanisms which affect numerous body systems

Answer 25

multisystem trauma

Question 26

the phase of an explosion in which pressure from the blast is less than atmospheric pressure

Answer 26

negative wave pulse

Question 27

the principle that a body at rest will remain at rest unless acted on by an outside force

Answer 27

newton's first law of motion

Question 28

the principle that the force that an object can exert is the product of its mass times its acceleration

Answer 28

newton's second law of motion