Which of the following events of endochondral ossification occurs last?

A) Blood vessels grow into the primary ossification center.
B) Cartilage is calcified in the cartilage model.
C) A cartilage model is formed by chondroblasts.
D) Osteoblasts produce trabeculae and lamellae on the surface of calcified cartilage.
E) Secondary ossification centers appear in the epiphyses.

Osteoblasts

Cells responsible for bone formation, playing a key role in bone growth and repair by synthesizing and depositing bone matrix.

Endochondral Ossification

A process during fetal development where cartilage is systematically replaced by bone, forming the skeletal system.

Secondary Ossification Centers

Regions in the epiphyses of long bones where bone tissue forms during the growth process.