TYPES OF JOINTS

Synathrosis - Unmovable joints (fibrous joint)
Diarthrosis - Freely movable joints (synovial joints)
Amphiarthrosis - Slightly movable joints (cartilaginous joints)


SYNATHROSIS JOINTS 

These are types of joints which are unmovable due to the fibrous tissue keeping the joint strong, an example would be skull sutures.

DIARTHROSIS JOINTS

These are also known as synovial joints due to the synovial fluid which allows the joint to be able to freely move. There are various different types of synovial joints:

Gliding joint: Allows gliding or sliding of two joints, for example the carpals in the wrist.

Hinge joint: Works similar to a hinge on a door, allows flexion and extension of the joint.

Ball and socket joint: Allow all movement apart from gliding an example would be the shoulder.

Condyloid joint: Allows flexion and extension in one plane whilst adduction and abduction in another, an example would be the index finger.

Saddle joint: Only found in the thumb (carpometacarpal joint) Similar to ball and socket joint however the joint sits over the metacarpal like a saddle.

Pivot joint: Enables the joint to pivot meaning rotation of the joint, for example the neck.

AMPHIARTHROSIS JOINTS

These are slightly moveable joints due to the hyaline cartilage which attaches the joints together. An example would be the pubis symphysis in the hip girdle or the spinal vertebrae.