Which of the following events 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.

Question

Quizplus · Accepted Answer

Secondary ossification centers appear in the epiphyses after the primary ossification center has formed and bone growth has progressed towards the ends of the bones. The other events listed (formation of cartilage model, calcification of cartilage, growth of blood vessels into primary ossification center, and production of trabeculae and lamellae by osteoblasts) all occur earlier in the process of bone development.

Which of the Following Events Occurs Last