Which bone is not part of the rib cage?

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Study for the Ivy Tech APHY 101 - Skeletal System Test. Enhance your learning with flashcards and multiple choice questions, each question includes hints and explanations. Prepare for success!

Multiple Choice

Which bone is not part of the rib cage?

Explanation:
The rib cage is made up of the sternum in the center front, the true ribs that attach directly to the sternum, and the thoracic vertebrae along the back. These bones form a protective, flexible enclosure for the heart and lungs and support breathing. The scapula, or shoulder blade, belongs to the pectoral girdle and sits on the upper back, but it does not form part of the rib cage and doesn’t directly articulate with the spine or sternum. Its main role is to anchor shoulder muscles and connect the arm to the trunk via the clavicle. So, the bone not part of the rib cage is the scapula.

The rib cage is made up of the sternum in the center front, the true ribs that attach directly to the sternum, and the thoracic vertebrae along the back. These bones form a protective, flexible enclosure for the heart and lungs and support breathing. The scapula, or shoulder blade, belongs to the pectoral girdle and sits on the upper back, but it does not form part of the rib cage and doesn’t directly articulate with the spine or sternum. Its main role is to anchor shoulder muscles and connect the arm to the trunk via the clavicle. So, the bone not part of the rib cage is the scapula.

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