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EXSS 288 Final Exam UPDATED ACTUAL Questions And CORRECT Answers

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EXSS 288 Final Exam UPDATED ACTUAL Questions And CORRECT Answers Acute injury - CORRECT ANSWER - Mechanical failure of soft tissue due to excessive force occurring in a single instance Chronic injury - CORRECT ANSWER - Mechanical failure of soft tissue due to repeated microtrauma that happe...

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  • November 25, 2024
  • 14
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • EXSS 288
  • EXSS 288
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MGRADES
EXSS 288 Final Exam UPDATED ACTUAL
Questions And CORRECT Answers
Acute injury - CORRECT ANSWER - Mechanical failure of soft tissue due to excessive
force occurring in a single instance


Chronic injury - CORRECT ANSWER - Mechanical failure of soft tissue due to repeated
microtrauma that happens overtime


Open injury - CORRECT ANSWER - exposed and breaks surface of skin



closed injury - CORRECT ANSWER - unexpozed and any injury that does not involve
disruption of skin


Mechanical stress - CORRECT ANSWER - - Stress/Load: external or internal force acting
on tissue


- Degree of deformation/strain depends on:
-- Tissue composition
-- Speed of applied load
-- Frequency of loading
-- Direction of loading


Stress/strain curve - CORRECT ANSWER - - Yield point: load(stress) is greater than
mechanical capabilities of the tissue
-- Tissue starts to fail at yield point


- Tissue fails completely at ultimate tensile strength

, Tissue Stresses - CORRECT ANSWER - Six primary mechanical forces that cause injury:


1. Tension: pulling action trying to elongate structure
2. Compression: pushing action tending to shorten the structure
3. Shear: forces that act parallel to the cross section or surface of a body
Forces are in opposite directions
4. Combined: tissue is seldom loaded in one mode only, subject to multiple indeterminate loads,
structure is irregular
5. Bending: loading (stress) about an axis -- combination of tension and compression
6. Torsion: load applied causing structure to twist about an axis


Bones - CORRECT ANSWER - - Epiphysis (top/bottom) and diaphysis (middle)
- Endosteum (inside) and periosteum (outside)
- Increased mass = increased bone strength
- Wolff's law: bones will adjust to degree of mechanical stress
- Bone shape: sudden changes are areas where mechanical stress is most concentrated
- Most resistant to compression than tension and least resistant to shear force


Description of fracture - CORRECT ANSWER - - Site: bone name and
diaphysis/epiphysis
- Extent: partial or complete
- Configuration: transverse, oblique, spiral, etc.
- Relationship fragments: displaced or nondisplaced
- Relationship to environment: open or closed


Transverse fracture - CORRECT ANSWER - direct blow



Spiral fracture - CORRECT ANSWER - rotation on planted foot

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