FORENSIC ANTHROPOLOGY

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Presentation transcript:

FORENSIC ANTHROPOLOGY BODY IDENTIFICATION DETERMINING SEX, AGE , and RACE

DETERMINING AGE Changes occur as age increases (25-30) then degeneration begins Cranial sutures close as age increases (fontanelle/soft spot)) Epiphyses- growth plate closes as age increases Ossification- the hardening of bone, increases as age increases

DETERMINING SEX Skull Differences- female is rounder and smaller Supraorbital ridges more pronounced in males Male chin is square, Female chin is round Muscle Attachment (indentations) more pronounced in males

DETERMINING SEX Sacrum (wider and shorter in female) Coccyx is more movable in female Pelvis (Os Pubis)Differences 1-Width of pubic arch (female is larger) 2- Width of pubic body (female is wider)

DETERMINING RACE- Skull Features Caucasoid – (European, Middle Eastern, East Indian)- Negroid- African, Aborigine, Melanesian Mongoloid- Asian, Native American, Polynesian

DETERMINING RACE- Skull Features Examine: Mandible (lower jaw bone) Nasal aperture (nose bone) Palate (roof of mouth) Orbitals (eye sockets) Zygomatic arches (cheek bones)

DETERMINING RACE- Skull Features Caucasoid: 1-long , narrow nasal aperture 2- triangular palate 3- oval orbits 4- narrow zygomatic arches 5- narrow mandibles

DETERMINING RACE- Skull Features Mongoloid 1- Rounded nasal aperture 2- Parabolic palate 3- Round orbits 4- Wide zygomatic arches 5- Pointed mandibles

DETERMINING RACE- Skull Features Negroid 1- Wide nasal aperture 2- Rectangular palate 3- Square Orbits 4- pronounced zygomatic arches

DETERMINING HEIGHT Male Humerus: Height (cm)= (Length of Humerus) x (2.89 + 70.64 Femur:

DETERMINING HEIGHT Forensic anthropologists can estimate a person’s stature (height) based on long bone measurements. Different formulas are used for men and women since they have different proportions of long bones to total height. Formulas are used to estimate height within 7.5 cm

FEMALE H= femur length x 2.21 + 61.41 H= tibia length x 2.53 + 72.57 H= humerus length x 2.79 + 71.48 H= radius length X 3.87 + 73.50

MALE H= femur length X 2.23 + 69.08 H= tibia length x 2.39 + 81.68 H= humerus length X 2.89 + 70.64 H= radius length x 3.65 + 80.40