Ch-8 Body movements

​ CH-8

The body movements​

​ Topics to be covered

​ 1- What is cartilage.

2- The human skelaton composed of around bones.

3- Why earthworm is unable to move on glass.

4- Is it possible to move at one bone.​

5- What is the main bone of our skelaton.​

6- ​How many bonesare present in our backbone.

​ Ball and socket joint

​ The ribe cage

​

We see that the ribs are curiously bent. They ​join the

chest boneand the backbone together to form a box.

this is called the rib cage. there are 12 ribs on each sid

of chest. Some important internal parts of our body

lie protected inside this cage.​

​ Backbone

​ Pelvic bones

​This structure is made of pelvic bones.

They enclose the portion of your body below

the stomach .This isthe part you sit on

​

​ Cartilage