<P> Each rib consists of a head , neck , and a shaft , and they are numbered from top to bottom . The head of a rib is the end part closest to the spine with which it articulates . It is marked by a kidney - shaped articular surface which is divided by a horizontal crest into two facets . The superior facet is smaller and articulates with the vertebra above , and the inferior facet articulates with the vertebra of the same number . The transverse process of a thoracic vertebra also articulates with the rib of the same number . The crest gives attachment to the intra-articular ligament . All ribs are attached posteriorly to the thoracic vertebrae . </P>
<P> Each rib consists of a head , neck , and a shaft , and they are numbered from top to bottom . The head of a rib is the end part closest to the spine with which it articulates . It is marked by a kidney - shaped articular surface which is divided by a horizontal crest into two facets . The superior facet is smaller and articulates with the vertebra above , and the inferior facet articulates with the vertebra of the same number . The transverse process of a thoracic vertebra also articulates with the rib of the same number . The crest gives attachment to the intra-articular ligament . All ribs are attached posteriorly to the thoracic vertebrae . </P>
where does the head of the rib attach
where does the head of the rib attach
the spine
the spine