__________is / are characterised by the presence of fluid filled synovial cavity between the articulating surfaces of two bones.

Ball and socket joint is a synovial joint. Synovial joints are characterised by the presence of a fluid filled synovial cavity between the articulating surfaces of the two bones.Joint between cranial bones is a fibrous joint which does not allow movement.Pubic symphysis and vertebral joints are cartilaginous joint which allow slight movement.