A triangular bone made up of five fused vertebrae and forming the posterior section of the pelvis. The human sacrum is a robust bone that can endure a lot of pressure and motion. Britannica.com: Encyclopedia article about sacrum. Le sacrum est un os issu de la fusion de cinq vertèbres sacrées. a bone resulting from the fusion of two or more vertebrae between the lumbar and the coccygeal regions, in humans being composed usually of five fused vertebrae and forming the posterior wall of the pelvis. It is formed of five united vertebrae and is wedged between the two innominate bones, its articulations forming the sacroiliac joints. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sacrum.' The segment of the vertebral column forming part of the pelvis; a broad, slightly curved, spade-shaped bone, thick above, thinner below, closing in the pelvic girdle posteriorly; it is formed by the fusion of five originally separate sacral vertebrae; it articulates with the last lumbar vertebra, the coccyx, and the hip bone on either side. Structure of the sacrum. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Information and translations of sacrum in the most comprehensive dictionary definitions resource on the web. For example, sacral agenesis is absence of all or part of the sacrum. /ˈsæk rə, ˈseɪ krə/. Un autre visiteur a peut être d'ailleurs déja ajouté l'information manquante. The male sacrum is narrower and more curved than the female sacrum. Sacral definition is - of, relating to, or lying near the sacrum. (Entry 1 of 2) : of, relating to, affecting, or being the region of the joint between the sacrum and the ilium sacroiliac distress. It is inserted like a wedge between the two hipbones. Chordoma is a rare type of bone cancer that happens most often in the bones of the spine or the skull. Word History: The human sacrum consists of five fused vertebrae, to which the coccyx or tailbone—the vestigial remnant of a tail—is attached. Medical Author: William C. Shiel Jr., MD, FACP, FACR; home > sacrum Sacrum: The large heavy bone at the base of the spine, which is made up of fused sacral vertebrae. The sacrum is at the bottom of the spine and lies between the fifth lumbar segment and the coccyx (tailbone). Medical Definition of sacral index. Os sacrum: The large, heavy bone at the base of the spine. ‘The sacrum, coccyx, and the two coxal bones form the pelvis.’ ‘In other tetrapods, haemal arches do not begin for several vertebrae posterior to the sacrum.’ ‘In 68% of individuals studied, the division occurs between the fifth lumbar vertebra and the upper border of the sacrum.’ The triangular bone situated dorsal and caudal from the two ilia between the fifth lumbar vertebra and the coccyx. Sacro- definition, a combining form representing sacrum in compound words: sacroiliac. Sacral: Referring to the sacrum. The sacrum joins on each side with the bones of the pelvis. How to use a word that (literally) drives some pe... Do you know these earlier meanings of words? It most often forms where the skull sits atop the spine (skull base) or at the bottom of the spine (sacrum). Os sacrum, sacred bone, so called because it was believed to escape disintegration and to serve as the basis for the resurrected body; a broad, slightly curved, spade-shaped bone, thick above, thinner below, closing in the pelvic girdle posteriorly; it is formed by the welding together of five originally separate sacral vertebrae. adj. The sacrum is the name of the bone located at the base of the spine that consists of five fused vertebrae. sacrum n noun: Refers to person, place, thing, quality, etc. What is sacrum? cra A triangular bone made up of five fused vertebrae and forming the posterior section of the pelvis. CONTINUE SCROLLING OR CLICK HERE FOR RELATED SLIDESHOW Le sacrum est l’os qui rassemble les cinq vertèbres sacrées. Listed under: It consists of 5 vertebrae fused together and it articulates on each side with the bones of the pelvis (ilium), forming the sacroiliac joints. Medical Pathology: Lumbar Spine, Sacrum, & Coccyx. The sacrum is a very strong bone that supports the weight of the upper body as … 6 ways to abbreviate Sacrum. Learn medical definition of Sacrum. Sacrum medical definition, flashcards and ICD-10 codes. Implanting an electrical stimulator into the sacrum might help reduce pain caused by sacroiliitis. In Latin, this large bone was called os sacrum, literally "holy bone." Provided by Stedmans medical dictionary and Drugs.com. Medical Definition of sacral. 'Nip it in the butt' or 'Nip it in the bud'. Sous cette crête sacrée se trouve le canal sacré, un tunnel allant du sommet du sacrum à … They are represented by the symbols S1 through S5 and are situated between the lumbar vertebrae and the coccyx (the lowest segment of the vertebral column). 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