Final answer:
Synchondroses are cartilaginous joints where the bones are joined by hyaline cartilage. They are found in the epiphyseal plates of growing bones in children and allow for very little movement.
Step-by-step explanation:
Cartilaginous joints are joints in which the bones are connected by cartilage. There are two types of cartilaginous joints: synchondroses and symphyses. In a synchondrosis, the bones are joined by hyaline cartilage. Synchondroses are found in the epiphyseal plates of growing bones in children. Either type of cartilaginous joint allows for very little movement.