Shoulder, or 

 pectoral girdle 



Collar bone, 

 or clavicle 



Breastbone, 

 or sternum 



Shoulder 

 blade, or 

 scapula 



Humerus 



Radius 

 Ulna 



Scicrum 



Kneecap, 

 or patella 



Fig. 129. Human skeleton 



The skeleton consists of bones attached to one another by tough bands of connective 

 tissue called ligaments. At various points bones next to each other are separated by 

 tough, elastic pads of connective tissue, as between the parts of the vertebral column; 

 at other points two bones that move against one another are separated by special 

 joint surfaces that are perfectly smooth and lubricated by a fluid; at other points 

 distinct bones appear to be fused together; and in some places the bones run into a 

 tough tissue called cartilage, which is the same as the gristle in the outer ear. All 

 the bones, together with the cartilages and ligaments, make up the skeleton 



