BASILAR SUTURE Meaning and
Definition
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The basilar suture refers to a specialized joint located in the human skull, specifically between the basilar part of the occipital bone and the body or rostrum of the sphenoid bone. It forms a strong connective link between these two bones, providing stability and support to the base of the skull.
This type of suture is classified as a synarthrosis, meaning it is an immovable joint. The basilar suture is considered a fibrous joint, as it is formed by dense fibrous connective tissue between the adjacent bones. Fibrous joints are known for their strength and stability, limiting motion to ensure protection of vital structures in the body.
The presence of the basilar suture is essential for the structural integrity of the skull. It plays a crucial role in establishing the shape and dimensions of the cranial cavity, which houses and protects the brain. The tightly knit connection between the occipital and sphenoid bones of the skull prevents excessive movement, ensuring the proper alignment and function of the cranial bones.
During the developmental stages of the human skull, the basilar suture is initially flexible. However, as growth progresses, it gradually fuses and becomes solid. This fusion is generally complete by early adulthood. The closure of the basilar suture is an important marker in age estimation for forensic anthropologists and can help determine the skeletal age of an individual.
Etymology of BASILAR SUTURE
The word "basilar" comes from the Latin word "basis", meaning "base". The term "suture" is derived from the Latin word "sutura", meaning "seam" or "stitch". Therefore, the etymology of the word "basilar suture" refers to the seam or joint at the base of the skull, where the occipital bone and the sphenoid bone meet.
