ABFM Forensic Anthropology & Identification Flashcards

In forensic anthropology, what distinguishes perimortem trauma from postmortem trauma on bone?

Answer: Perimortem bone shows green-stick fractures and plastic deformation; postmortem is dry and jagged

Perimortem bone retains moisture and shows plastic deformation (green-stick fractures), while postmortem dry bone fractures are sharp and irregular.

Sharp force trauma to bone in a forensic context is identified by which characteristic feature?

Answer: Smooth-walled incised cuts with internal striations

Sharp force trauma produces smooth-walled cuts with internal striations (kerf marks) caused by the blade edge passing through the cortical bone.

What type of skeletal fracture pattern is most associated with blunt force trauma?

Answer: Concentric and radiating fracture lines at the impact site

Blunt force trauma typically produces concentric ring fractures surrounding the impact point with radiating fracture lines extending outward.

A gunshot wound entry on a flat cranial bone typically shows which characteristic feature?

Answer: Beveling on the inner (endocranial) table

Gunshot entry wounds on the skull typically show internal (endocranial) beveling as the projectile forces bone inward through the inner table.

Which technique is used in forensic anthropology to document and analyze patterns of bone trauma for court presentation?

Answer: Macroscopic and microscopic analysis with photographic documentation

Macroscopic and microscopic analysis combined with systematic photographic documentation is the standard method for trauma analysis and courtroom evidence.

When burned skeletal remains are submitted for analysis, what primary challenge does the forensic anthropologist face?

Answer: Fragmentation and shrinkage complicate measurement and identification

Heat causes bone shrinkage, warping, and extreme fragmentation, making standard measurements and biological profile estimation unreliable or impossible.