Anatomy Sternum

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. There are three horizontal ridges that pass through the 3rd 4th and 5th articular facets.

Sternum Growth Plate

It is a flat bone that articulates with the clavicle and the costal cartilages of the upper 7 ribs true ribs while the 8th 9th and 10th ribs false ribs are indirectly attached with sternum via costal cartilage of the ribs above.

Anatomy sternum. 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. Gross anatomy the sternum is composed of a manubrium a body and the inferior xiphisternum aka. Several muscles that move the arms head and neck have their origins on the sternum.

Its origin in evolution is unclear. The sternum is attached to the first seven ribs and also to the clavicle or collarbone. The sternum is also known as the breastbone.

The bone is divided into three parts. The superior border of the. The corpus sterni or gladiolus is the longest part of the sternum.

The anterior surface of the sternal body is almost flat. The sternum is made up of three parts called the manubrim. The posterior surface also has these three lines.

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. Sterna or sternums completes the anterior chest wall as the ventral breastplate.

Sternum Ribs Joints Anatomy Flashcards Memorang