Question 2
Which of the following joints is immovable?
(a) Shoulder and arm
(b) Knee and joint
(c) Upper jaw and skull
(d) Lower jaw and upper jaw
Option (c).
A joint which permits no kind of movement is called as an immovable joint or fixed joint. In such joints, bones have been fused together in such a way that they are fixed to that part. Such joints are found in the skull, upper jaw, rib cage, backbone, pelvic bone, etc.