Osteology

First, third, and eighth ribs of right side viewed from above

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Image #114-1

	Osteology First, third, and eighth ribs of right side viewed from above The tubercle for the scalenus anterior muscle and the groove for the subclavian artery are not clearly demarcated on the first rib. The relations of this muscle and artery to the rib are shown in 127-3. 1 . Costal tubercle 2 . Neck of rib 3 . Head of rib 4 . Epiphyseal line 5 . Costal crest 6 . Angle of rib 7 . Body of rib