First Rib

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The first rib is the shortest and the most curved of all the ribs; it is broad and flat, its surfaces looking upward and downward, and its borders inward and outward. The head is of small size, rounded, and presents only a single articular facet for articulation with the body of the first thoracic vertebra.


Henry Gray Anatomy Descriptive and Applied (New York, NY: Lea & Febiger, 1913)


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