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Large flat bone, 15-20 cm/5.9-7.8 in long in the adult, at the front of the chest, joined to the ribs. It give protection to the heart and lungs. During open-heart surgery the sternum must be split to give access to the thorax.

The sternum can be felt beneath the skin throughout its whole length, from the root of the neck into the abdominal wall. It has three parts - the manubrium, body, and xiphoid process - which are united by cartilage. The joint between the manubrium and body, the sternal angle, can be felt opposite the second ribs.

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14y ago
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12y ago

To act as a lwrge shield that protects the heart. It also joins all the ribs at a single point.

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12y ago

It acts as and reattachment and point of articulation for the ribs and provides protection to the organs underneath.

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7y ago

The sternum is commonly called the breast bone. It covers the heart and helps to form a cage around the lungs and a small amount of the liver and fall bladder and even the top of the kidneys.

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7y ago

Sternum

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Q: What does the breast bone do in you body?
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