Question

Describe the various kinds of skeletal joints in the human body according to their mobility, giving one example of each.

Answer 1

Hint: The places of our body where two bones meet together are called joints. Joints help in improving mobility in the human body. Joints can be classified according to structure and function.

Complete answer:
Structural Classification:
> Cartilaginous Joints- These joints are partly movable and are made up of synchondrosis joints. They occur in the regions where the articulating bones are connected with cartilages. They are mostly present in young children and disappear by puberty. The examples of the cartilaginous joint in the spinal column and the ribcage.
> Synovial Joints: These help us to perform many activities like walking, running, swimming, and more. They are flexible and movable and are found in the knee joint, wrist, neck, etc.
Functional Classification:
> Ball and socket joint: They are joints in which the rounded end of a bone fits into the cavity or hollow space of the other bone. These joints allow movement in all directions. An example is the joint of the arm and shoulder.
> Pivotal joint: In this joint, a cylindrical bone rotates in a ring. It allows bending forward and backward and turning to the right and left. For example, the neck joint is a pivotal joint.
> Hinge joint: It is a joint that allows the bones to move in one direction. For example, the elbow or the knee joint.
> Fixed joint: These joints do not allow any movement and are fixed as the bones are fused. For example, the joint in the upper part of the skull and upper jaw.

Note:
Functional classification defines and explains the types of joints in the human body. The Skeletal system is the framework and allows the movement of the body. Cartilaginous joints are mostly present in young children and disappear by puberty.