Skeletal System
Articular Facets on Head of Third Rib
Facies articulares capitis costae tertiae
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The head of the third rib contains two articular facets.
- The superior articular facet articulates with the inferior costal facet of the second thoracic vertebra, forming the lower part of the joint of the head of the third rib.
- The inferior articular facet articulates with the superior costal facet of the third thoracic vertebra, forming the upper part of the joint of the head of the third rib.
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Rib Cage
The rib cage forms the bony margins of the chest wall and is composed of the ribs, costal cartilages, sternum and thoracic vertebrae.
