Which of the following is NOT considered a fibrous articulation?

The correct choice identifies synchrondosis as the option that is not a fibrous articulation.

Syndesmosis, gomphosis, and suture are indeed types of fibrous joints, characterized by the presence of connective tissue, specifically collagen fibers, that help bind the bones together. In a syndesmosis, the bones are connected by a ligament, allowing for some movement. A gomphosis is a specialized joint that secures teeth into their sockets using a fibrous connection. Sutures are fixed joints found in the skull, where the bones are closely united by a thin layer of dense connective tissue.

In contrast, synchondrosis involves the connection of bones by hyaline cartilage and is thus classified as a cartilaginous joint rather than a fibrous joint. This type of articulation allows for limited movement, typically found in areas such as the growth plates of long bones or between the first rib and the sternum, demonstrating a fundamentally different structural composition compared to fibrous articulations.