Which Structure Allows the Diaphysis of the Bone to Grow

Question

Which structure allows the diaphysis of the bone to grow longer until early childhood?
A) lacunae
B) epiphysis
C) osteon
D) epiphyseal plate

Accepted Answer

The epiphyseal plate, also known as the growth plate, is a cartilaginous structure located between the diaphysis and epiphysis of a long bone in children and adolescents. This structure allows for the lengthening of bones until early childhood, after which it typically ossifies and turns into the epiphyseal line. The lacunae are small cavities within the bone matrix that house osteocytes. The epiphysis is the rounded end of a long bone, while the osteon is the structural unit of compact bone tissue.