<prompt> Ankle joint is-Plain jointHinge jointPivot jointBall and socket joints  <response>: B Hinge Joint 147-BDC-2 6th editionClassitication of synovial joint 15-16-Snelf7thPlane jointsHinge jointsPivot jointsCondyloid jointeg. Sternoclavicular Acromioclaviculareg. Elbow JtKnee Jt Ankle Jteg. Atlanto axialSuperior radioulnar jointsEg. Matacarpophal angeal or Knuckle JtEllipsoid jointSaddle JointBall and Socket jointseg: - Wrist jointeg. Carpometacarpal joint of the thumbEg: - Shoulder jointHip joints Gomphosis Peg and Socket joint examples tooth in its socket Cartilaginous jointsPRIMARY CARTILAGINOUS JOINTSSynchondrosis or hyaline cartilage jointsSecondary cartilaginous jointsSymphyses or Fibro cartilaginous joints The bones are united by a plate of hyaline cartilage, so that the joint is immovable and strong These joints are temporary in nature because after a certain age the cartilaginous plate is replaced by bone Synostosis The articular surface are covered by a thin layer of hyaline cartilage and united by a disc of fibro cartilage These joints are permanent and persist throughout life. In this respect symphysis menti is a misnomer, Typically the secondary cartilaginous joints occur in Primary cartilaginous jointSynchondrosisExamplesa Joint between epiphysis and diaphysis of a growing long bonesb Spheno-occipital jointc First chondrostemal jointd Costo-chondral jointsthe median plane of the body, and permit limited movements due to compressible pad of fibrocartilage, and the occasional fluid filled cavities, such as in the pubic and manubriostemal joints; the thickness of fibrocartilage is directly related to the range of movement Secondary cartilage joints may represent an intermediate stage in the evolution of svnovial iointsSecondary cartilaginous jointExamplesa Symphysis pubisb Manubriostemal jointc Intervertebrals between the vertebral bodies 