BI151 | EXAM 3 - UNIT 7: AXIAL SKELETON, RIBS
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12 Terms
How many TRUE (vertebrosternal) ribs are there?
7 (ribs 1–7)
How many FALSE ribs are there?
5 (ribs 8–12)
Which ribs are specifically vertebrochondral ribs?
Ribs 8-10
Which ribs are specifically vertebral (floating) ribs?
Ribs 11-12
How do true ribs attach to the sternum?
Directly via costal cartilages
How do vertebrochondral (false) ribs attach to the sternum?
Indirectly by connecting to the cartilage of rib 7
What part of the rib has two articular facets that articulate with thoracic vertebrae?
Head
What is the narrow area just below the head of a rib called?
Neck
What part of a rib has a facet that articulates with the transverse process of a thoracic vertebra?
Tubercle
What is the main, long part of the rib called?
Body (shaft)
Where does a rib abruptly change curvature?
Costal angle
What structures attach the ribs to the sternum?
Costal cartilages