The word "Sutural Bone" refers to the bones that form the joints between the bones of the skull. The spelling of this word can be understood by using the International Phonetic Alphabet (IPA) transcription. It is pronounced /ˈsuːtjərəl boʊn/. This transcription indicates that the first syllable is pronounced as "soot," while the second syllable is pronounced as "yuh-ral." The final syllable "bone" is pronounced as "bohn." This phonetic breakdown can help understand how to spell and pronounce the word accurately.
A sutural bone is a small, irregularly-shaped bone found in the joints between the bones of the skull. Also known as wormian bones (after Danish anatomist Ole Worm), these additional bones occur in some individuals and are not present in the typical adult skull. Sutural bones develop within the sutures, which are the immovable joints where cranial bones are connected. These bone junctions serve as sites for the growth and expansion of the skull during infancy and childhood, as well as allow for the protection of the brain.
Sutural bones vary in size and shape, ranging from small, rounded nodules to larger, flat pieces. They are composed of dense, compact bone tissue and have the same structural and biochemical properties as other bones in the body. Although the exact cause of sutural bone formation remains unclear, factors such as genetics, environmental influences, and mechanical stress on the skull during development may contribute.
While most individuals have no sutural bones, they can occur in various locations, such as the sagittal suture (between the two parietal bones) or the lambdoid suture (at the back of the skull). Sutural bones are typically harmless and do not cause any health issues. However, in certain cases, an excessive presence of these bones (known as wormian bones) may be associated with certain medical conditions or genetic abnormalities.
Wormian b.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "sutural" comes from the Latin word "sutura" which means "a seam or stitch". In anatomy, "sutural" refers to structures related to the sutures, which are the immovable joints between certain bones of the skull.
Therefore, a "sutural bone" is a bone that is located within a suture or is formed by the fusion of two or more cranial bones connected by a suture.