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Bones of the Appendicular Skeleton Forensic Anthropology. Parts of the Skeletal System. Axial skeleton Skull, vertebral column, ribs Appendicular skeleton Upper & lower limb bones, pectoral & pelvic girdles. Clavicle. Scapula. Costals (Ribs). Sternum. Thoracic Cage.
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Bones of the Appendicular Skeleton Forensic Anthropology
Parts of the Skeletal System • Axial skeleton • Skull, vertebral column, ribs • Appendicular skeleton • Upper & lower limb bones, pectoral & pelvic girdles
Thoracic Cage True ribs (pairs 1 – 7) False ribs (pairs 8 – 12) Floating ribs (pairs 11 – 12) Parts of Sternum: • Manubrium • Body • Xiphoid Process
Clavicle Scapula Sternum Costals (Ribs) Humerus Vertebra Ulna Radius
2. Ilium 1. Sacrum 6. Acetabulum 4. Pubis 3. Ischiuim 7. Obturator Foramen 8. Coccyx
Ilium Sacrum Pubis Ischium Femur Patella Fibula Tibia
Carpels Bones of the Hand
Metacarpels Carpels Bones of the Hand
Phalanges Metacarpels Carpels Bones of the Hand
Tarsals Bones of the Foot
Metatarsals Tarsals Bones of the Foot
Phalanges Metatarsals Tarsals Bones of the Foot
FORENSIC ANTHROPOLOGY The Tales that Bones Tell
Forensic Anthropology = Analysis of skeletal remains within a legal investigation • Physical anthropologist = osteologist • Training = BS physical anthropology MS osteology
Biological Identity (who was it?) • Age • Sex • Previous injuries • Cause of death • Race • Stature/weight
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
Fusing of Skull • Appearance of sutures can give approximate age • In infants there are large gaps which close slowly over time
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
Other factors telling about age • Bone density - drops after 40 • Pelvic joint morphology- ridge detail wears out over time • Dental changes
Appendicular Skeleton Activity • Excellent site to study: http://www.getbodysmart.com/ap/skeletalsystem/skeleton/menu/menu.html