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Human Osteology. ASA Bio 2014 Williams . Major Divisions of the Body. Cranial – skull Infracranial – the rest of the body Axial – trunk & head (parts in midline) Appendicular – appendages/ limbs Includes pelvic and shoulder girdles. Upper Limb. Clavicle Scapula Humerus Radius Ulna
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Human Osteology ASA Bio 2014 Williams
Major Divisions of the Body • Cranial – skull • Infracranial – the rest of the body • Axial – trunk & head (parts in midline) • Appendicular – appendages/ limbs • Includes pelvic and shoulder girdles
Upper Limb • Clavicle • Scapula • Humerus • Radius • Ulna • Carpals • Metacarpals • Phalanges
Clavicle • 1 right & 1 left • Articulates with sternum medially and scapula laterally • Part of shoulder girdle
Scapula • 1 right & 1 left • Articulates with clavicle and humerus • Does NOT articulate with ribs • Part of shoulder girdle
Humerus • 1 right & 1 left • Articulates with scapula, ulna & radius
Ulna • 1 right & 1 left • Articulates with humerus & radius • Connected to radius by interosseous membrane • Does NOT articulate with carpal bones
Radius • 1 right & 1 left • Articulates with humerus, ulna, and proximo-lateral aspect of carpal bones • Connected to ulnaby interosseous membrane
Carpals • Bones of the wrist • 8 elements (per side) • 2 rows of 4 • Proximal row articulates with radius • Distal row articulates with metacarpals
Metacarpals • Bones of the hand • 5 elements (per side) • Articulate with distal row of carpals and phalanges • Numbered lateral to medial • MC1 – MC5
Manual Phalanges • Bones of the fingers • 14 elements (per side) • Separated into three rows • Proximal phalanges (5) • Intermediate phalanges (4) • Distal phalanges (5) • Singular – phalanx Intermediate
Lower Limb • Innominate • Femur • Patella • Tibia • Fibula • Tarsals • Metatarsals • Phalanges
Innominate • Oscoxa • 1 right & 1 left • Articulate with sacrum posteriorly, other innominate anteriorly, and femur laterally
Innominates • 3 parts • Ilium • Ischium • Pubis
Femur • 1 right & 1 left • Considered strongest bone • Articulates with innominate, tibia, and patella
Patella • 1 right & 1 left • Sesamoid bone • Articulates only with femur
Tibia • 1 right & 1 left • Articulates with femur, fibula and talus (tarsal bone) • Weight bearing bone of the lower leg • Connected to fibula with interosseous membrane
Fibula • 1 right & 1 left • Non-weight bearing • Articulates with tibia and talus (tarsal bone) • Connected to tibia by interosseous membrane
Tarsals • Bones of the ankle • 7 elements (per side) • Articulate with each other, tibia, fibula, and metatarsals
Metatarsals • Bones of the foot • 5 elements (per side) • Numbered medially to laterally • MT1 – MT5 • Articulate with tarsals and phalanges
Pedal Phalanges • Bones of the toes • 14 elements (per side) • Separated into three rows • Proximal phalanges (5) • Intermediate phalanges (4) • Distal phalanges (5) • Singular – phalanx