Question

1. How many muscles together work to make a bone move ?
2. What is Moveable joints ?
3. What is Ligaments ?
4. Skull is made of how many bony plates ?
5. What is backbone ?
6. what is the function of the backbone ?
7. what is Ribcage ?
8. functions of a Ribcage ?
9. what is present between the various vertebrae of Backbone ?
10. what type of joint makes our head turn from side to side ? ​

Answer 1

Answer:

• A single muscle can only pull, it cannot push. Thus, muscles work in pairs to move a bone. When one muscle contracts, it pulls the movable bone. When another muscle of the pair pulls, it brings the bone back to its original position.

Explanation:

• Hint:Muscles move body parts by getting a contract and then relax that is back to position. Muscles can pull bones however; they cannot push them back to the previous position, to do so they work in pairs of flexors and extensors.
• Muscles provide the tug on the bones needed to bend, straighten, and support joints. Muscles can pull on bones, but they can't push them back to their original position, so the muscles work in pairs of flexors and extensors. The extensor muscle relaxes and stretches as the flexor muscle contracts to bend the joint.
• Your bones do so much more than provide support for your body. They facilitate movement, provide protection to internal organs, and are important for blood cell formation and nutrient storage.
• Complete answer: Two muscles are used in the movement of a bone. 2 muscles i.e flexor and extensor are involved within the movement of the bone. This is often because a muscle cannot work in 2 directions.