The term "cristae sacrales articulares" refers to the bony projections found on the sacrum that articulate with the pelvic bones. The correct pronunciation of this word is kriːsˈtiː sækˈreɪliːs ɑːrtɪkjuˈleəz, with emphasis on the first and third syllables. "Cristae" is pronounced kriːsˈtiː, "sacrales" is pronounced sækˈreɪliːz, and "articulares" is pronounced ɑːrtɪkjuˈleəz. The IPA phonetic transcription provides a clear guide on how to pronounce this complex medical term accurately.
Cristae sacrales articulares is a term derived from Latin and it refers to the bony ridges found on the sacrum, a triangular-shaped bone located at the base of the spine between the two hip bones. These ridges, known as cristae, are specifically found on the articular surfaces of the sacrum.
The sacrum is made up of five fused vertebrae, which form a strong foundation for the pelvis and support the weight of the upper body. The cristae sacrales articulares are located on the posterior aspect of the sacrum where it articulates, or joins, with the last lumbar vertebra and the bones of the pelvis, specifically the ilium bones.
The cristae sacrales articulares play a significant role in the stability and movement of the pelvis. They provide attachment sites for ligaments and muscles, helping to reinforce and support the sacroiliac joint, which is the joint that connects the sacrum to the ilium bones. The articular surfaces and ridges help to facilitate the movement of these bones, allowing for essential movements such as walking, running, and bending forward and backward.
In summary, cristae sacrales articulares refers to the bony ridges found on the articular surfaces of the sacrum. They are crucial for maintaining stability and facilitating movement in the pelvis, ultimately contributing to the overall functionality of the spine and lower body.
Irregular ridges on the posterior surface of the sacrum, one on either side of the crista media, formed by the fusion of the articular processes of the sacral vertebrae.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.