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
Shoulder Girdle – anterior scapula
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
Wrist and Hand Carpals Metacarpals phalanges
Carpals
Metacarpals and Phalanges
Pelvic Girdle
Pelvic Girdle Ilicac crest Anterior/superior iliac spine Acetabulum Spine of ischium Obturator formaen Pubic symphysis
Female and Male Skeletons 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 Fibula Medial and larger Tibial tuberosity Lateral condyle Medial condyle Medial malleolus Fibula Lateral and smaller Head Lateral mealleolus
Tarsals – Metatarsals - Phalanges Calcaneus Talus Cuboid Navicular Cuneiforms