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Appendicular Skeleton

Appendicular Skeleton

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Appendicular Skeleton

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  1. Appendicular Skeleton Ch. 8

  2. Consists of: • Shoulder (pectoral) Girdle • Upper extremities • Pelvic Girdle • Lower extremities

  3. Shoulder Girdle • Sternum + clavicle = sternoclavicular joint • Clavicle + scapula = acromioclavicular joint • Scapula held in place by muscle only • Upper limb attached to girdle at shoulder

  4. Shoulder Girdle - Clavicle • S-shaped bone

  5. Shoulder Girdle – posterior scapula • Acromion process • Glenoid cavity • Spine • Coracoid process

  6. Shoulder Girdle – anterior scapula

  7. Upper Extremities • 30 bones each • Humerus, radius, ulna • Carpal bones in wrist • Metacarpals in palm • Phalanges in fingers

  8. Humerus • Head • Greater tubercle • Lesser tubercle • Deltoid tuberosity • Lateral epicondyle • Medial epicondyle • Capitulum • Trochlea

  9. Radius and Ulna • Radius • Head • Styloid process • Radial tuberosity • Ulna • Styloid process

  10. Wrist and Hand • Carpals • Metacarpals • phalanges

  11. Carpals

  12. Metacarpals and Phalanges

  13. Pelvic Girdle

  14. Pelvic Girdle • Ilicac crest • Anterior/superior iliac spine • Acetabulum • Spine of ischium • Obturatorformaen • Pubic symphysis

  15. Female and Male Skeletons • Male skeleton • larger and heavier • larger articular surfaces • larger muscle attachments • Female pelvis • wider & shallower • larger pelvic inlet & outlet • more space in true pelvis • pubic arch >90 degrees Tortora & Grabowski 9/e 2000 JWS

  16. Lower Extremities • 30 bones each • Femur • Patella • Tibia • Fibula • Tarsals • Metatarsals • phalanges

  17. Femur and Patella • Head • Greater trochanter • Lesser trochanter • Lateral epicondyle • Medial epicondyle

  18. Tibia and Fibula • Tibia • Medial and larger • Tibialtuberosity • Lateral condyle • Medial condyle • Medial malleolus • Fibula • Lateral and smaller • Head • Lateral mealleolus

  19. Tarsals – Metatarsals - Phalanges • Calcaneus • Talus • Cuboid • Navicular • Cuneiforms