Answer: False
The epiphyseal plates, also known as growth plates, are actually made up of hyaline cartilage, not spongy bone. These plates are located at the ends of long bones and play a crucial role in the lengthening of bones during the growth period in children and adolescents. As an individual matures, these cartilage plates gradually ossify and turn into bone, which signifies the end of the bone growth. Therefore, the statement claiming that epiphyseal plates are made of spongy bone is incorrect.