Final answer:
The sternum and ribs are essential parts of the thoracic cage, connecting and protecting vital organs. Understanding their structure helps comprehend their functions within the body.
Explanation:
Structure of the Sternum and Ribs
The sternum is a flat bone at the front of the chest that connects to the ribs via costal cartilages. The ribs, 12 pairs of curved bones, attach to the thoracic vertebrae and form the ribcage.
Parts of the Sternum
The sternum consists of the manubrium, body, and xiphoid process, with the manubrium having landmarks like the jugular notch and clavicular notch.
Rib Attachments
Ribs attach to the thoracic vertebrae and most connect via their costal cartilages to the sternum, forming the thoracic cage.
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