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Skeletal Identification

Skeletal Identification. Still needs work. Identifying the Race of a Skull. · Forensic Anthropologists identify unidentified skeletal remains by studying and classifying different parts of the skeletal remains.

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Skeletal Identification

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  1. Skeletal Identification Still needs work

  2. Identifying the Race of a Skull · Forensic Anthropologists identify unidentified skeletal remains by studying and classifying different parts of the skeletal remains. · To make the process simpler, they separate all skulls into three racial categories: Mongoloid, Negroid, and Caucasoid. · Race is determined only by the skull if the skeleton is not of mixed nationalities. · Gonial inversion, mid-facial characteristics, and dental arcade are among the factors which determine the race of the skull. Picture: http://www.pnl.gov/er_news/12_96/skull.gif

  3. The Mongoloid Skull · Belongs to person of the Asian race. · Significant Characteristics: - Narrow, short low-bridged nasal bones - Diamond-shaped nose holes - Variable profile: · Vertical chin · Squared zygomatic bones - Medium nasal slits - Medium cheek bones - Least mandible projection Picture: www.skullsunlimited.com/humanskullsrp.htm

  4. The Negroid Skull · Belongs to person of the Black race. · Significant Characteristics: - Broad, flat, short nasal bridge - Square nose holes - Prognathic profile: · Vertical chin · Curved zygomatic bones - Wider inter-orbital area - Gutted nasal borders - Largest nasal slits - Prognarthic jaws Picture: www.skullsunlimited.com/humanskullsrp.htm

  5. The Caucasoid Skull · Belongs to person of Caucasian race. · Significant Characteristics: - Narrow, long high-bridged nasal bones - Triangular nose holes - Straight profile: · Prominent chin · Curved zygomatic bones - Prominent nasal spine: - Steeped nasals - Smallest nasal slits - Smallest cheek bones Picture: www.skullsunlimited.com/humanskullsrp.htm

  6. Skull and Teeth Gender Determinations Skull · Male skulls are larger than female skulls · The male has a higher forehead than a female, and a more sloping frontal area. · Females have sharper superior orbital borders. · Males have a more pronounced brow ridge. · Supraorbital ridges are extreme in males and slight in females. · Square chins indicate male. · Round chins indicate female. Teeth · Males have much larger teeth. · Males have a larger mandible. Picture: http://medstat.med.utah.edu/kw/osteo/forensics/sex/bonesksex.html Picture: www.sav-ondrugs.com/shop/templates/surgeries/graphics/Chinaugmentation_1.jpg

  7. Pelvic Girdle Gender Determinations Female Pelvic Girdles have: · A greater pelvis width · A greater pelvis opening · Smaller sacrum length · Smaller sacrum width The lower part of the pelvis is angular in shape for males, and circular for females. Picture: www.carolina.com/calendar_activities/ 2001/0108_pelvis.asp Picture: www.carolina.com/calendar_activities/ 2001/0108_pelvis.asp

  8. Femur Gender Determinations · Attachment of the femur to the pelvic girdle - Weight bearing surfaces are larger in males than in females. - Greater distance from femur to femur in males than in females. Pictures: http://medstat.med.utah.edu/kw/osteo/forensics/sex/bonesksex.html Pictures: http://medstat.med.utah.edu/kw/osteo/forensics/sex/bonesksex.html

  9. Age Determinations Skull · The cranium of a baby is not solid, but divided into four pieces. · Studying the calvarium, which is much larger in relation to the face between ages 0-5, can determine age. - The calvarium is much larger in relation to the face and mandible between ages 0-5. - The brain sutures are very far apart. · Studying a skull that is 18-23 years of age demonstrates: - A relatively larger skull size. - Closer (almost meeting) brain sutures. Picture: http://headlines.org.uk/images/SkullWeb.jpg Picture: medstat.med.utah.edu/kw/osteo/forensics/age/bone5-60cran.jpg

  10. Age Determination--Jaws & Teeth Newborn · No teeth · two sets of buds in jaw - Primary teeth - Permanent teeth Age 1-3 · 20 Primary teeth by age three Age 6-10 · Larger and stronger jaw · Greater amount of muscle attached to jaw · Buds for permanent teeth · All permanent teeth are in by age 10 Young Adult · Larger and stronger jaw · Jaw shows complete set of permanent teeth (32) · Wisdom teeth · Molar development is apparent at age 18-21 Picture: http://img.intelihealth.com/i/D/DNTPrimaryPermanent.jpg Picture: medstat.med.utah.edu/kw/osteo/forensics/age/decid.html Picture: medstat.med.utah.edu/kw/osteo/forensics/age/dent18.html

  11. Age Determination Spinal Column · Space between the cartilage and bones of a spinal column will lessen as a child ages. Pelvic Girdle · The pelvic girdle will not completely fuse the cartilage and bone during childhood. · With increasing age, the two lowermost pelvic bones kit together where they meet. Long Bones · Epiphyseal rings begin to appear around the age of puberty. · Cartilageneres plast separating epiphysist diaphysis remains in place for first 20 years of life. Picture: http://www.lowbackpain.com/images/spinal.gif Pictures: medstat.med.utah.edu/kw/osteo/forensics/age/ Pictures: medstat.med.utah.edu/kw/osteo/forensics/age/

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