Appendicular Skeleton

1. Appendicular Skeleton Ch. 8

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

3. Shoulder (pectoral) girdle • Sternum + clavicle = sternoclavicular joint • Clavicle + scapula = acromioclavicular joint • Scapula held in place by muscles only • Upper limb attached to girdle at shoulder • Clavicle – s-shaped bone • Attaches sternum to shoulder (bridge between the 2 joints)

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

6. Shoulder Girdle – anterior scapula

7. Upper Extremities • 30 bones each • Consists of: • Humerus • Radius • Ulna • Carpal bones in wrist • Metacarpals in hand • 1-5 starts with thumb • Phalanges in fingers • 1-5 starts with thumb

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 • Made of 2 bones • Join with the lower extremities • Differences between male and female pelvis • Male • Larger and heavier • Larger muscle attachments • Female • Larger pelvic spaces • Pubic arch greater than 90 degrees

14. Lower Extremities • 30 bones each • Consists of: • Femur • Patella • Fibula • Lateral and smaller • Tibia • Bigger and medial • Tarsals in ankle • Metatarsals in foot (1-5) • Phalanges in toes (1-5)

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

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

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