Assertion: rib cage's rib | /r/MadeOf | intercostal muscles
Facets:
Source sentences:
text: True: 1st to 7th, contain their own costal cartilages and attach directly to the sternum False: 8th, 9th, 10th of which their respective cartilages connect to the costal cartilage of the rib above Floating: 11th and 12th rib hang freely and only articulate with the vertebra Intercostal Spaces Named according to the rib forming the superior border and contain intercostal muscles, vessels, and nerves Joints Xiphisternal: xiphoid process and body of sternum