Compléter Thoracic CageVersion en ligne Fill in the Blank Activity - Bones in the Thoracic Cage par Morgan Cooper 1 ribs shaft body vertebrae T12 curved cage sternum false true T5 10 elongated manubrium floating ribs 7 inferior xiphoid slender process costal cartilage thoracic not The protects the heart and lungs . It consists of 12 thoracic , twelve pairs of , and . The sternum is an bone and consists of the , which is the superior sternal bone . The or middle sternal bone extends from the - T9 . The is the sternal bone . The 12 pairs of articulate posteriorly with the T1 - thoracic vertebrae . Ribs 1 - attach to the sternum through are known as ribs . Ribs 8 - are known as ribs . Ribs 11 - 12 that do attach to the sternum are know as ribs . The 1st rib is short , broad , and . The 6th rib has a head , neck and . The 12th rib is a short bone .
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