Blunt Force Trauma
Sharp Force Trauma
High Velocity Projectile Trauma
Thermal Exposure
Personal Identification
100

The imprint of impacting instrument is clearly visible on affected tissue

What is Patterned Trauma 

100

This type of sharp-force tool has a thin blade with a bevel that may terminate in a point. It may be straight or serrated and it may be single or double edged.

What is a knife
100

Rapid application of force over a relatively small surface area, usually bullets from a firearm

What is high velocity projectile trauma

100

The exposure of the body to high temperature or direct contact with flames

What is Thermal Exposure

100

identity based on context and/or personal effects

What is Presumptive identification:

200

The separation of the outer layer of bone

What is Delamination

200

This type of sharp-force trauma is characterized by a penetrating wound from pointed instruments directed vertically to a bone surface. It has circular to oblong pits with pointed floors

What is a Puncture Wound (stab wounds)

200

projectile impacts at extreme oblique; almost parallel; enters then knocks out edge of bone; looks half entrance, half exit; both internal and external beveling

What is Keyhole defect shape

200
  • Pale yellow
  • Charred (blackened)
  • Calcined (gray/white)

What are the color changes associated with thermal exposure

200

the matching of a set of remains to a known individual

What is Personal identification

300

What can cause blunt force trauma?

What are Broad impacts to skeleton and/or Skeleton impacting broad surface

300

Dismemberments are typically done

what is postmortem

300

The diameter of bullet and/or barrel of handgun or rifle

What is Caliber: 

  • Usually hundredths of an inch
300
  • Combustion of organic materials and water evaporation
  • Warping and deformation

What is shrinkage

300

The scientific matching of antemortem and postmortem records to sufficient detail to conclude that they are from one individual to the exclusion of all other reasonable matches

What is Positive (scientific) identification

400

How fractures initiate and propagate 

What are..

  • Bones fracture in tension
  • Fracture follow path of least resistance
  • Continue until energy is dissipated
  • Generally fractures do NOT cross foramina, sutures, or preexisting fracture lines
400

This type of saw cuts along the grain

what is a rip saw

400

stellate pattern of fractures extending around impact site

  • Primary means of relieving stress of impact
  • Length correlated with energy of impact (power of weapon)

What are Radiating Fractures

400

These are a result of soft tissue shrinkage and bone fragility

Heat induced fractures

400

Types of positive ID

What are

  • Nuclear DNA
  • Fingerprints
  • Comparative Medical radiography
  • Comparative dental radiography
  • Surgical implants (sometimes)
500

This fracture is characterized by the separation of entire face from braincase

What is LeFort 3

500

Sharp force trauma has four of these

what are types (Puncture, Incisions, Clefts, Saw Marks)

500

Given the same caliber several factors influence the size and shape

What are

  • Loss of bullet's gyrosocpic stability
  • Intermediate targets
    • Entrance wound can be larger or smaller than original bullet caliber
  • Tangential impacts
  • Variation in shape, surface treatment, strength of bullets
500

“boxer-like” body posture of flexed elbows and knees and clenched fists, caused by the shrinkage of body tissues and muscle due to dehydration caused by heating

what is the pugilistic pose

500

This individual studied the reliability of the frontal sinuses in positive identification

 

Who is Christensen (2005)

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