Question

What are the different types of joints? Give one example of each type?

Answer 1

Hint: Joints are articulation between two or more bones, thus they are classified or divided on the basis of movement. The range of movements is the basis of three kinds of joints.

Complete Answer:
Joints are a structural arrangement where two bones articulate or can say meet each other. The framework of the body consists of separate skeletal elements which are joined with the different types of joints. They play an essential role in the movement of different skeletal structures.

(I) FIBROUS JOINT: Fibrous joints are also termed as fixed joints. They are characterized by the absence of synovial cavities and ligaments. They are fixed by sutures. In the fibrous joint, no movements occur between the bones, hence are immovable.
Example bones of skull, bones of pelvic girdle.

(II) CARTILAGINOUS JOINT: Cartilaginous Joints are also called as slightly movable joints. They are characterized by separation of bones by cartilage and absence of synovial cavity. Slight movements are possible in such joints due to compression of pad of cartilages.
Example: between the central two vertebra, ribs and sternum.

(III) SYNOVIAL JOINTS: Synovial Joints are also called freely movable joints. They are characterized by the free movements of joints in one or more directions. A membrane called synovial membrane is present which secretes synovial fluid. Synovial fluid acts as lubricant and provides nutrient materials for the structures within the joint cavity. The bone ends are covered by articular cartilages which are composed of hyaline cartilage.
Example: between carpal bones and tarsal.

Note: The examples of different types of joints should be remembered by linking it to the physical movements of our body which will result in less confusion among them. Like the bones of the brain cannot be moved and hence, they are examples of fibrous joints.