Epiphyseal plate is located between which two bone regions?

• A. Between the periosteum and epiphysis
• B. Within the medullary cavity
• C. Between the epiphysis and diaphysis
• D. At the joint surface

Answer: (C)

The epiphyseal plate sits in the metaphysis between the epiphysis (the end part) and the diaphysis (the shaft) of a long bone. This cartilaginous layer allows bone to lengthen through endochondral ossification as cells divide, mature, and are replaced by bone. When growth ends, the plate ossifies into the epiphyseal line. It is not located at the joint surface, within the medullary cavity, or between the periosteum and epiphysis.