Sternum Anatomy
It is not found in fish. It is endochondral in origin.
The sternum or breastbone is a flat bone at the front center of the chest.
Sternum anatomy. It forms part of the rib cage and the anterior most part of the thorax. There are three horizontal ridges that pass through the 3rd 4th and 5th articular facets. The anterior surface of the sternal body is almost flat.
The superior border of the. Several muscles that move the arms head and neck have their origins on the sternum. The sternum is attached to the first seven ribs and also to.
The corpus sterni or gladiolus is the longest part of the sternum. Sternum also called breastbone in the anatomy of tetrapods four limbed vertebrates elongated bone in the centre of the chest that articulates with and provides support for the clavicles collarbones of the shoulder girdle and for the ribs. The ribs and sternum make up what is called the ribcage the ribcage protects the lungs blood vessels and heart along with parts of the spleen stomach and kidneys from traumatic injury.
Its functions are to protect the thoracic organs from trauma and also form the bony attachment for various muscles. The sternum commonly known as the breastbone is a long narrow flat bone that serves as the keystone of the rib cage and stabilizes the thoracic skeleton. The posterior surface also has these three lines.
10 it probably first evolved in early tetrapods as an extension of the pectoral girdle. The sternum in vertebrate anatomy is a flat bone that lies in the middle front part of the rib cage. It is also the center around which the superior 10 ribs directly or indirectly attached.
The sternum is the bone that lies in the anterior midline of our thorax. Its origin in evolution is unclear.
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