Answer
Cartilaginous joints are also called amphiarthroses. In this type of joint the two bones of the joint are connected by a cartilage. Subdivisions of cartilaginous joints are synchondroses and symphyses :
Synchondroses: In this type the two bones are held together very tightly by hyaline cartilage. Synchondroses are mostly found in immature skeletons (ossify later), but a few are found in adult skeletons.
Examples
(a). ischio-pubic joint in pelvis ( ossifies later)
(b). spheno-occipital joint at the base of the skull
The joint between the first rib and the manubrium of the sternum is an example of a synchondrosis in
the adult skeleton.
Work Step by Step
Symphyses:
In a symphysis the two bones are held together by fibrocartilage. An example is the pubic symphysis. In this joint the right and left pubic bones are joined anteriorly by a cartilaginous interpubic disc. The joints between two vertebrae is separated by a pad of cartilage-- the intervertebral disc-. These joints also are symphyses
