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Bony Thorax

Bony Thorax. Bony Thorax. The sternum, ribs and thoracic vertebrae make up the bony thorax The bony thorax is often called the thoracic cage because it forms a protective, cone-shaped cage of slender bones around the organs of the thoracic cavity. Sternum.

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Bony Thorax

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  1. Bony Thorax

  2. Bony Thorax • The sternum, ribs and thoracic vertebrae make up the bony thorax • The bony thorax is often called the thoracic cage because it forms a protective, cone-shaped cage of slender bones around the organs of the thoracic cavity

  3. Sternum • The sternum is a typical flat bone and the result of the fusion of three bones: manubrium, body and xiphoid (zif’oid) process Manubrium Body Xiphoid

  4. Ribs • 12 Pairs of ribs form the walls of the thoracic cage • The true ribs, the first 7 pairs, attach directly to the sternum by costal cartilages • False ribs, the next 5 pairs, either attach indirectly to the sternum or are not attached to the sternum at all • The last 2 pairs of false ribs lack the sternal attachments, and so they are also called floating ribs

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