Fibrous joints are immovable or fixed joints in which no movement is possible. These joints are made of tough collagen fibres. Fibrous joints are found in:
(1) the sutures (joints between the skull plates) of the skull;
(2) the peg and socket joint found between the teeth and their bony sockets; and (3) the radio-ulnar (forearm) and the tibio-fibular (leg) joints in the upper and the lower limb, respectively.