Question

what is immovable or fixed joint

Answer 1

Most fibrous joints are also called "fixed" or "immovable", because they do not move. These joints have no joint cavity and are connected via fibrous connective tissue. The skull bones are connected by fibrous joints called sutures.In fetal skulls the sutures are wide to allow slight movement during birth.

Answer 2

☆ Fixed Joint ☆

In some joints, the bones are held so tightly together that they cannot move at all. Such joints are called fixed joint.In fixed joints, the bones are held very firmly together by strong fibres. The fixed joints are immovable joints. The function of fixed joint is to provide strength and support to the body or to protect the delicate organ which cannot with stand any kind of deformation.

Fixed joints occur in our skull. The plate-type bones of our skull are held together by fixed joints and cannot move at all. This makes the skull very strong. The hard and strong skull protects a delicate organ of our body called brain. It is clear from the above discussion that our skull is not a single bone. It is made up of a number of Bony plates connected by fixed joint.