Question

Which of the following is an immovable joint?
A. Joint in the arm
B. Joints between teeth
C. Joint between vertebrae
D. All of the above

Answer 1

Hint: Fibrous joints are joints related by means of fibrous tissue, consisting especially of collagen. These are constant joints wherein bones are united through a layer of white fibrous tissue of various thickness. Immovable joints include fibrous joints, which are not able to move or are not flexible in the body as compared to the other movable joints.

Complete answer: Most fibrous joints are also known as "fixed" or "immovable". These joints have no joint hollow space and are connected through fibrous connective tissue. The skull bones are related by means of fibrous joints called sutures. In foetal skulls, the sutures are huge to allow slight movement at some point of start. They later grow to be inflexible (synarthrodial). Some of the lengthy bones in the frame including the radius and ulna inside the forearm are joined by way of a syndesmosis (alongside the interosseous membrane). A syndesmosis is slightly transportable (amphiarthrodial). The distal tibiofibular joint is every other example. A gomphosis is a joint between the foundation of enamel and the socket within the maxilla or mandible (jawbones). Gomphosis, additionally known as a dentoalveolar syndesmosis, is a joint that binds the enamel to bony tooth sockets inside the maxillary bone and mandible. The fibrous connection between enamel and its socket is a periodontal ligament. Specifically, the relationship is made between the maxilla or mandible to the cementum of the enamel.
The motion of a gomphosis is minimal, even though the full-size movement can be finished over time, the idea of the use of braces to realign enamel. The joint can be considered a synarthrosis.

Note: A gomphosis is a specialized fibrous joint in which a conical method or peg of one bone suits right into a hole or socket in every other bone. A small amount of fibrous tissue holds the bones together. No movement is possible at such peg-and-socket joints. The gomphosis is simply taken into consideration as a fibrous joint because the tissue linking the structures is ligamentous.