tubercle of rib

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tu·ber·cle of rib

[TA]
the knob on the posterior surface of a rib, at the junction of its neck and shaft, which articulates with the transverse process of the vertebra, which corresponds in number to the rib, forming a costotransverse joint.
Synonym(s): tuberculum costae [TA]

tu·ber·cle of rib

(tū'bĕr-kĕl rib) [TA]
The knob on the posterior surface of a rib, at the junction of its neck and shaft, that articulates with the transverse process of the vertebra, which corresponds in number to the rib, forming a costotransverse joint.