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Ribs123

Ribs structure

QuestionAnswer
How many ribs are there? 12
Which ribs are "typical" ribs? 3-9
What are the main features of a typical rib? Head, neck, tubricles and a shaft
Head of a typical rib articulates with what? 2 vertibrae, superior and inferior demifacets. The rib inferior articular facet of the rib will articulate with the same number demifacet of the vertibrae
Tubricle of the typical rib is located where and articulates with? Posterioinferior part of the neck of the rib, articulates with the transverse articular process of the same # rib
Where is the interarticular crest of a rib? On the head, between facets
Where is the costal groove? Anterior inferior surface of the shaft. Costal vein, artery and nerve run through here
Unique features of the 1st rib? Flat, short, articulates withT1
2nd rib special features? Almost typical, lacks tubricle
10th rib unique? Single facet, only articulates with T10
Floating ribs are? 11 and 12. Dont attach to sternum, they are short and lack a neck and tubricles
Created by: hopper