Body movements
Body movements Q.1. What do you understand by the term ‘Movement’ and how is it different from the term ‘Locomotion’? Ans. A change in the position of an object is called ‘Movement’ like movement of hands while playing, doing exercise, blinking of eyes etc. The ability of living being to move its body from one place to another is called ‘Locomotion’ like living beings walk, run, crawl etc. Q.2. What are Joints and write a short note on each type of joint present in our body? Ans. Bones can not bend. We can bend and move our body only at some points where bones meet, such points are called joints. There are 4 types of joint present in our body: A ball and socket joint - this is the joint in which ball like surface of one bone is fitted into hollow space of another bone (also called socket). Such a joint allows movements in all directions. These can be found in shoulder joint, hip joint etc. A pivotal joint - this is the joint which allows rotation, twisting, extension an