EXSS 288 Exam 2 UNC Questions With Complete Solutions(SCORED A+)

Intrinsic Injury - ANSWERSInfection (viral, bacterial) Extrinsic Injury - ANSWERSTissue stressed to the point of mechanical failure due to excessive force Primary Injury - ANSWERSDirect, immediate consequence of excessive force (trauma) ex. ACL tear, sprained ankle Secondary Injury - ANSWERSDelayed injury some time after initial trauma; an accomodation to an initial injury ex. sprained ankle causes knee or hip to hurt from gait compensation Acute Injury - ANSWERSMechanical failure of soft tissue due to excessive force occuring in a SINGLE bout; sudden onset of short duration Chronic Injury - ANSWERSMechanical failure of soft tissue due to REPEATED microtrauma occuring over an extended period of time; gradual onset and of prolonged duration Open Injury - ANSWERSBreaks the surface of the skin; exposed Closed Injury - ANSWERSAny injury that does not involve disruption of the skin surface; unexposed Load or Stress - ANSWERSMechanical force (internal or external) acting on the tissue Strain or Deformation - ANSWERSDegree or extent of damage in response to a force 1. Tissue composition 2. Speed 3. Frequency 4. Direction (of load) - ANSWERSDegree of deformation depends on which 4 factors? Yield point - ANSWERSLoad is greater than mechanical capabilities of the tissue; point on stress/strain curve where mechanical failure begins to occur Elastic region -