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Appendicular Skeleton. Ch. 8. Consists of:. Shoulder (pectoral) Girdle Upper extremities Pelvic Girdle Lower extremities. Shoulder Girdle. Sternum + clavicle = sternoclavicular joint Clavicle + scapula = acromioclavicular joint Scapula held in place by muscle only
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Appendicular Skeleton Ch. 8
Consists of: • Shoulder (pectoral) Girdle • Upper extremities • Pelvic Girdle • Lower extremities
Shoulder Girdle • Sternum + clavicle = sternoclavicular joint • Clavicle + scapula = acromioclavicular joint • Scapula held in place by muscle only • Upper limb attached to girdle at shoulder
Shoulder Girdle - Clavicle • S-shaped bone
Shoulder Girdle – posterior scapula • Acromion process • Glenoid cavity • Spine • Coracoid process
Upper Extremities • 30 bones each • Humerus, radius, ulna • Carpal bones in wrist • Metacarpals in palm • Phalanges in fingers
Humerus • Head • Greater tubercle • Lesser tubercle • Deltoid tuberosity • Lateral epicondyle • Medial epicondyle • Capitulum • Trochlea
Radius and Ulna • Radius • Head • Styloid process • Radial tuberosity • Ulna • Styloid process
Wrist and Hand • Carpals • Metacarpals • phalanges
Pelvic Girdle • Ilicac crest • Anterior/superior iliac spine • Acetabulum • Spine of ischium • Obturatorformaen • Pubic symphysis
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
Lower Extremities • 30 bones each • Femur • Patella • Tibia • Fibula • Tarsals • Metatarsals • phalanges
Femur and Patella • Head • Greater trochanter • Lesser trochanter • Lateral epicondyle • Medial epicondyle
Tibia and Fibula • Tibia • Medial and larger • Tibialtuberosity • Lateral condyle • Medial condyle • Medial malleolus • Fibula • Lateral and smaller • Head • Lateral mealleolus
Tarsals – Metatarsals - Phalanges • Calcaneus • Talus • Cuboid • Navicular • Cuneiforms