Final answer:
The formation of an epiphyseal line does not signify the continuation of lengthwise growth in a bone; rather, it indicates that longitudinal growth has ceased. false.
Step-by-step explanation:
The statement that the formation of the epiphyseal line signifies the continuation of lengthwise growth in a bone is False. The presence of an epiphyseal plate indicates that a bone is still growing in length, as it contains chondrocytes that continue to divide and contribute to longitudinal bone growth. However, once the bone has matured, the chondrocytes cease to proliferate, and the cartilage is replaced with bone, transforming the epiphyseal plate into an epiphyseal line, which signifies that the growth in length has ceased. The presence of an epiphyseal plate indicates that a bone is still growing in length, as it contains chondrocytes that continue to divide and contribute to longitudinal bone growth.