Appendicular Skeleton Upper Appendicular Skeleton Bone Lower Appendicular Skeleton Bone Similarities Differences Clavicle Ischium/Pubis Scapula Ilium Humerus Femur Radius Tibia Ulna Fibula Carpals Tarsals Metacarpals Metatarsals Phalanges

Pectoral Girdle Clavicle – collarbone Scapula – shoulder blades Anterior attachment (?) Posterior attachment (?) Scapula – shoulder blades Spine – divides posterior surface into 2 sections Coracoid process (“Corac” = ?) – curves to clavicle Acromion process – forms tip of shoulder Glenoid cavity (or fossa) – depression that articulates with head of humerus

Upper Limb Humerus Radius Ulna Carpals Metacarpals Phalanges

Humerus Head fits into glenoid cavity of scapula Greater tubercle – lateral process Lesser tubercle – more anterior process Intertubercular groove – narrow furrow “between tubercles” Deltoid tuberosity – v-shaped, rough area where _________ muscles attach to humerus Olecranon fossa – posterior depression that receives an ulnar process when elbow is straightened Coronoid fossa – anterior depression that receives a radial process when elbow is bent

Radius Shorter bone of lower arm Located on thumb side of arm Disc-like head articulates with humeru and with radial notch of the ulna (so your arm can rotate) Radial tuberosity, a process below the head, provides attachment for biceps Styloid process – at distal end; attachment for wrist ligaments

Ulna Longer than radius Overlaps distal end of humerus posteriorly Proximal end has a wrenchlike opening called the trochlear notch (articulates w/humerus) Oleacronon process – top process Coronoid process – bottom process Radial notch – just below trochlear notch Head – at distal end; articulates with ulnar notch of radius Styloid process – attachment for wrist ligaments

Label Diagrams