The chest is called the thorax, and the vertebrae that are part of it are the thoracic vertebrae. The thorax is made up of long flat curved bones called ribs. Skeleton tango dance poster At the back, the ribs are joined to the vertebrae. At the front, most of the ribs are joined to the sternum, which is often called the “breast bone”. All together, the “thorax” protects the heart, lungs and stomach.
Skeleton tango dance poster
Arms and legs both have a thicker bone at the top and two thinner bones at the bottom. They both have a rotating joint at the top, and a hinge joint in the middle. The hands and feet have lots of bones and are joined to the arms and legs by small bones with sliding parts. At the top of the “thorax” is the shoulder girdle. This is made of two thin horizontal bones at the front, joined to the “sternum”.
Skeleton tango dance poster
These two bones are called the clavicles or “collar bones”. At the back of the “thorax” are two flat triangular-shaped bones called the scapulae, or “shoulder blades”. The “clavicles” and “scapulae” come together on each side to make “shoulders”. The bones of the arms fit into sockets (cup-like holes) in the “scapulae”.
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