Respuesta :

Structural types of joints (based on the structure):
1. Synovial joints - the most common and the most moveable type of joints, characterised by joint capsule around the joint and synovial fluid inside of it )(Examples: shoulder, elbow, wrist, hip, knee...)
2. Cartilaginous joints - connected by hyaline or fibrocartilage and consequently less mobile than synovial joints (Example: intervertebral discs in the spinal cord)
3. Fibrous joints - non-moveable joints made of dense connective tissue (Example: joints between the bones of the skull)

Functional type of joints (based on the degree of movement):
1. Diarthrosis - the most moveable joints
2. Amphiarthrosis - the less moveable joints
3. Synarthrosis - the non-moveable joints
 The functional classification of joints is given below

focuses on the amount of movement allowed
-synarthroses (immovable joints)
-amphiarthroses (slightly movable joints)
-diarthroses (freely movable joints)

and thestructural classification of joints is

based on the material that binds the bones together and the presence or absence of a joint cavity
-fibrous joints
-cartilaginous joints
-synovial joints

hope it helps