Bones of the Appendicular Skeleton Forensic Anthropology.

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Bones of the Appendicular Skeleton Forensic Anthropology

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Transcript of Bones of the Appendicular Skeleton Forensic Anthropology.

Page 1: Bones of the Appendicular Skeleton Forensic Anthropology.

Bones of the Appendicular Skeleton

Forensic Anthropology

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Parts of the Skeletal System

• Axial skeleton– Skull, vertebral column, ribs

• Appendicular skeleton– Upper & lower limb bones,

pectoral & pelvic girdles

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Clavicle

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Scapula

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Costals (Ribs)

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Sternum

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Thoracic Cage True ribs (pairs 1 – 7)False ribs (pairs 8 – 12)Floating ribs (pairs 11 – 12)

Parts of Sternum:•Manubrium•Body•Xiphoid Process

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Vertebra

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Humerus

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Ulna

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Radius

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Sternum

ClavicleScapula

Costals (Ribs)Humerus

VertebraUlna

Radius

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Sacrum

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Sacrum & Coccyx

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Ilium

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Ischium

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Pubis

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1. Sacrum

8. Coccyx

2. Ilium

3. Ischiuim

4. Pubis6. Acetabulum

7. Obturator Foramen

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Femur

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Patella

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Tibia

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Fibula

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Ilium

Ischium

Femur

Fibula

SacrumPubis

Patella

Tibia

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Bones of the Hand

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Carpels

Bones of the Hand

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Metacarpels

Carpels

Bones of the Hand

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Phalanges

Metacarpels

Carpels

Bones of the Hand

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Bones of the Foot

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Bones of the Foot

Tarsals

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Bones of the Foot

Metatarsals

Tarsals

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Bones of the Foot

Phalanges

Metatarsals

Tarsals

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FORENSIC ANTHROPOLOGY

The Tales that Bones Tell

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Forensic Anthropology

= Analysis of skeletal remains within a legal investigation

• Physical anthropologist = osteologist

• Training = BS physical anthropology

MS osteology

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Biological Identity (who was it?)

• Age

• Sex

• Previous injuries

• Cause of death

• Race

• Stature/weight

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Approximate Age?

IN CHILDREN:• The cranium is much

larger in relation to the face and mandible

• The mandible and maxilla become larger as permanent molars begin to erupt

Child 4 years old

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Fusing of Skull

• Appearance of sutures can give approximate age

• In infants there are large gaps which close slowly over time

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• Head of Femur: 19 – 20 years

• Part of hip: 24 years

• Female bones stop growing in length usually 1-2 years before male bones

Epiphyseal Fusion

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Other factors telling about age

• Bone density - drops after 40

• Pelvic joint morphology- ridge detail wears out over time

• Dental changes

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Skull & pelvis are the two most sexually dimorphic areas

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Appendicular Skeleton Activity

• Excellent site to study:

http://www.getbodysmart.com/ap/skeletalsystem/skeleton/menu/menu.html

http://www.getbodysmart.com/ap/skeletalsystem/skeleton/menu/menu.html
http://www.getbodysmart.com/ap/skeletalsystem/skeleton/menu/menu.html

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