Forensic Anthropology Flashcards

1
Q

forensic anthropology

A

study of human skeletal remains associated with events that are likely to lead to criminal proceedings

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2
Q

5 major objectives of forensic anthroplogy

A
  • locating and recovering remains
  • interpret trauma
  • positive identification
  • ancestry, age, biology sex, height
  • postmortem interval
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3
Q

recovering crime scene excavation

A
  • getting remains from ground
  • very slow problems
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4
Q

how to determine the number of individuals

A
  • look at bones
  • look at numbers for left and right femurs
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5
Q

differences of human and animal bone

A
  • human bone is more porous
  • human cortical bone typically is a smaller proportion of the diameter
  • humans have more trabecular bone
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6
Q

osteon banding in humans vs animals

A
  • human osteon banding is circular
  • animal osteon banding is linear
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7
Q

positive body identification

A
  • xray
  • medical condition
  • DNA
  • dentition
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8
Q

determination of sex

A
  • consider multiple features
  • more obvious in adult skeletal remains
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9
Q

best bones to determine sex

A

pelvis

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10
Q

second best bone to determine sex

A

skull

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11
Q

male skull vs female skull

A
  • male skull is larger, heavier
  • large areas for muscle attachments
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12
Q

determination of age from bones: age 0-5

A

teeth are best (forensic odontology)

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13
Q

determination of age from bones: ages 6-25

A

epiphyseal fusion

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14
Q

epiphyseal fusion

A

fusion of bone ends to bone shaft

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15
Q

determination of age from bones: ages 25-40

A

very hard

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16
Q

determination of age from bones: 40+

A
  • periodontal disease
  • arthritis
  • breakdown of pelvis
  • occupational stress
17
Q

primary teeth

A
  • whiter crown color
  • smaller overall size
  • prominent cervical ridge
  • narrower roots
18
Q

permanent teeth

A
  • yellower crown color
  • larger overall size
  • wider roots
19
Q

hyaline cartilage

A

smooth surface for joints

20
Q

compact bone

A

very strong bone

21
Q

cancellous bone

A

where new cartilage is made and where red marrow is found

22
Q

epiphyseal plate

A

where new cartilage turns to bone

23
Q

medullary cavity

A

where the yellow fatty marrow is stored

24
Q

how is the epiphyseal line is formed

A

when bones cease growing, the cartilage is replaced by bone

25
Q

why don’t bones grind at the joints?

A

articulating cartilage is found between the bones

26
Q

age of someone with an open Basilar suture

A

< 18

27
Q

estimating postmortem interval: stage 0

A
  • tissue
  • greasy
  • no cracking
28
Q

estimating postmortem interval: stage 1

A

cracking parallel to fiber structure

29
Q

estimating postmortem interval: stage 2

A

outermost layers show flaking

30
Q

estimating postmortem interval: stage 3

A

bone is finely rough after outmost layers are gone

31
Q

estimating postmortem interval: stage 4

A

bone is largely rough and bone splinters

32
Q

estimating postmortem interval: stage 5

A

bone falling apart and very fragile

33
Q

examples of environmental reconstruction

A
  • barnacles adhering to bone
  • green algae stained bone