Page 5 - CH-8 -8.4 JOINTS

III. PIVOT JOINT

 Such joints allow only rotation against one another. In it a cylindrical bone

rotates in a ring.
 It allows us to bend our head forward and backward and turn the head to
our right and left.
 Example: joint present between the neck and the first two vertebrae of the
spine.

PIVOT JOINT

IV. GLIDING JOINT

 Gliding joints are also known as a plane joint. This joint permits two or more
round or flat bones to move freely together without any rubbing or
crushing of bones.
 This joint is mainly found in those regions where the two bones meet and
slide against one another in any of the directions. They also allow the back
to bend and twist.
 The lower leg to the ankle joint and the forearm to wrist joint are the two

main examples of gliding joints.