Question

write a note about bones and joints in our body

Answer 1

BONES:

The bones of the skeleton support our skin, give our body shape, protect and support our organs and make it possible for us to move by acting as single and double levers. Bones do not move on their own; muscles move our bones by pulling on them. Muscles cannot push against the bone, so muscles come in pairs, one muscle pulls the bone one way and the paired muscle pulls the bone back the other way. We have a total of 233 bones.

JOINTS:

Joints—also called articulations—are formed where the surfaces of two or more bones meet and articulate with each other. There are about 400 joints in the human body. Joints allow both movement and flexibility. Joints are classified by how much movement they allow—function—or what they are made of—structure. Joints are usually classified structurally by the tissue that connects them.

The functional joints are as follows:
▪ Immovable (synarthrosis) joints
▪ Slightly movable (amphiarthrosis) joints
▪ Freely movable (diarthrosis) joints

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