Human Anatomy & Physiology112LABORATORY9 AppendicularSkeleton(d)FIGURE 9.3 Clavicle Diagram (a)Sternal endSternal endsuperior view; (b) inferior view, Photograph (c) superior view; (d) inferior viewthe clavicle is the sternal end and the horizontally flat-tened end is the acromial end. Note the conoid (CON-oyd) tubercle on the inferior surface of the clavicle,Examine the clavicles in the lab and compare them tofigure 9.3. The arm transmits force to the clavicle, sand-wiched between the scapula and the sternum,Upper ExtremityHumerusThe humerus is a long bone that articulates with the scap-ula at its proximal end and with the radius and ulna atits distal end. The head of the humerus is a hemisphericstructure that ends in a rim known as the anatomical neck.The anatomical neck is the site of the epiphyseal line.The humerus has two large proximal processes, the great-er tubercle, the largest and most laterai process, and thelesser tubercle, which is medial and smaller, These pro-cesses are attachment
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