Describe The Functions Of Joints And Human Skeleton?
The place of attachment between two or more bones is known as a joint. All the joints of the body are capable of movement except for the joints of the bones of cranium, which houses the brain. There are various kinds of movable joints depending upon the movements they perform. Thus the knee joint is like a hinge, which allows the lower keg to move up or down, but not sideways. Following are different kinds of joints Hinge-joint Pivot-joint Ball and socket joint Gliding joint Hinge- joint :-This allows the movement of the part of body in one direction ?up or sown but not sideways. Example of this joint are knee-joint, elbow-joint, movement of the lower jaw. Pivot joint :-As the name suggests, this kind of joint permits pivotal movement of the parts of body this joined. Movement of the skull is an example. A man can turn his head from one side to the other by rotating the skull, which is joined to the backbone at its top in such a way that a pivotal movements is possible.