Intra-articular ligament of head of rib

Interarticular ligament

Costovertebral articulations. Anterior view. (Interarticular ligament labeled at lower left.)
Details
Identifiers
Latin ligamentum capitis costae intraarticulare
Dorlands
/Elsevier		 l_09/12491758
TA A03.3.04.004
FMA 8962

Anatomical terminology

The intra-articular ligament of head of rib (interarticular in older texts) is situated in the interior of the articulation of head of rib.

It consists of a short band of fibers, flattened from above downward, attached by one extremity to the crest separating the two articular facets on the head of the rib, and by the other to the intervertebral fibrocartilage; it divides the joint into two cavities.

In the joints of the first, tenth, eleventh, and twelfth ribs, the interarticular ligament does not exist; consequently, there is only one cavity in each of these articulations.

This ligament is the homologue of the ligamentum conjugale present in some mammals, and uniting the heads of opposite ribs, across the back of the intervertebral fibrocartilage.

See also

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)



This article is issued from Wikipedia - version of the Saturday, April 18, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.