what are joints ? explain the 5 types of joints .Draw the types of joints and label it.
Answers
Answer:
Where two bones meet or link, it is called a joint or an articulation. Joints can be classified according to their structure and by the types of movement they allow. The body has more than 300 different joints.
there are only 3 types of joints:
●Fibrous Joints
Illustration shows sutures that knit the back part of the skull together with the front and lower parts.
The bones of fibrous joints are held together by fibrous connective tissue. There is no cavity, or space, present between the bones and so most fibrous joints do not move at all, or are only capable of minor movements.
●Cartilaginous joints are joints in which the bones are connected by cartilage. There are two types of cartilaginous joints: synchondroses and symphyses. In a synchondrosis, the bones are joined by hyaline cartilage. Synchondroses are found in the epiphyseal plates of growing bones in children. In symphyses, hyaline cartilage covers the end of the bone but the connection between bones occurs through fibrocartilage.
●Synovial joints are the only joints that have a space between the adjoining bones . This space is referred to as the synovial (or joint) cavity and is filled with synovial fluid. Synovial fluid lubricates the joint, reducing friction between the bones and allowing for greater movement.
hope it help you.....
