ASM 275 Lecture Notes - Lecture 14: Hematoma, Homicide, Summary Offence
14 Nov 2014
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Week 3: crime scene analysis, trauma and taphonomy. When bone is broken completely: vs infraction. When bone is broken incompletely: displacements. Bone surfaces no longer meet: hinge. A single discontinuity results: vs. comminuted. The bone shatters into many pieces: the opposite of a fracture displacement is a fracture line. Secondary fractures associated with trauma: radiating fracture lines. Most common, radiate out from impact area: hoop fracture lines. High velocity projectile wounds cause concentric rings to form, in and out beveling forces: characteristics of forces causing trauma, direction of force. Direction of force applied causes characteristic fracture types and patterns: speed of force. Dynamic sudden stress- most common, sharp force, blunt force, gsw, most common for forensic anthropology. Static slow applications of force- rare- strangulation and fracture of hyoid bone: focus of force. Hematoma forms blood pools over surface internal scab to help stabilize break.
