Thoracic cage Flashcards
What does it consist of and form?
Sternum and ribs and forms a protective cage.
Main function and main purpose
Protection and protecting your vital organs.
3 parts of sternum
Manubrium, body, xiphoid process.
Manubrium
Attaches to the clavicle (collar bone)
Body
Attaches to costal cartilage that connects to ribs.
Xiphoid process
Is an attachment point for muscles.
How many ribs and pairs?
24 ribs and 12 pairs
True pairs
The first seven pairs are true pairs (T1-T7), they connect directly to the sternum called costal cartilage.
False pairs
The last 5 pairs are false pairs (F8-F12), they connect to their own vertebra but do not directly connect to the sternum.
Leftover bones?
The last 2 bones are floating bones, they do not connect at all.