1 00:00:01,389 --> 00:00:21,679 What's the locomotive system? The locomotive system helps our body move. The locomotive system is formed by the skeleton, the muscles, the joints. 2 00:00:21,679 --> 00:00:54,219 My skeleton. The skeleton is formed by bones. The skeleton is inside our body. There are 206 bones in our body. Bones are hard and rigid. Bones, hard, rigid, inside. 3 00:00:54,219 --> 00:01:13,010 What does the skeleton do? The skeleton helps move my body. My skeleton supports my body. It protects my organs. 4 00:01:13,010 --> 00:01:34,409 Important bones in a skeleton. Ribs, skull, humerus, femur, pelvis, spine or backbone. 5 00:01:37,739 --> 00:01:49,549 Muscles. Muscles help move our bones. There are more than 600 muscles in our body. 6 00:01:49,549 --> 00:02:08,449 muscles are soft flexible elastic muscles are connected to the bones muscles contract and 7 00:02:08,449 --> 00:02:23,919 relax to move the bones the joints joints are unions between our bones they make a skeleton 8 00:02:23,919 --> 00:02:37,979 shoulder, elbow, hips, knee, ankle, wrist