Why Do Knuckles Pop?
Have you ever laced your fingers together and bent your fingers back? If you pressed hard on any bent finger, you would have heard a popping sound? Finger joints produce that loud c-r-a-c-king sound. The sound comes when bubbles in the fluid around the joint burst! Our entire body is made of a skeleton of 206 bones. Bones help in giving shape and support to the body and help us move about. Our bones are not too long otherwise we would not be able to bend or grasp things. Bones fit together at joints which is the meeting place between different bones of the skeleton. Joints are divided into fixed and movable ones. Most of the joints in our face are fixed, with the exception of the bones of lower jaw which are flexible and move up and down like a hinge. Joints in our elbows, knees and ankles are flexible and we use them all the time to move around. Bones at these joints are held firm by tissues and ligaments. These are tough cords or straps. Inside each joint is a thin membranous bag tha
