Put the following in correct order for endochondral ossification.
1) Mesenchymal cells of the embryo develop into cartilage-producing cells.
2) The periosteum (formerly perichondrium) begins to produce a thin layer of compact bone.
3) A hyaline cartilage model of the future bone is formed.
4) Cartilage in the midregion of the model becomes calcified.
5) Spongy bone tissue develops at the primary ossification center.
6) Secondary ossification centers produce spongy bone tissue of the epiphyses.
7) Medullary cavity is formed.
A) 1, 3, 4, 2, 5, 7, 6
B) 7, 2, 3, 1, 4, 5, 6
C) 3, 1, 2, 6, 7, 4, 5
D) 1, 3, 2, 4, 6, 5, 7

Question

Put the following in correct order for endochondral ossification. 
1) Mesenchymal cells of the embryo develop into cartilage-producing cells.
2) The periosteum (formerly perichondrium) begins to produce a thin layer of compact bone.
3) A hyaline cartilage model of the future bone is formed.
4) Cartilage in the midregion of the model becomes calcified.
5) Spongy bone tissue develops at the primary ossification center.
6) Secondary ossification centers produce spongy bone tissue of the epiphyses.
7) Medullary cavity is formed.
A) 1, 3, 4, 2, 5, 7, 6
B) 7, 2, 3, 1, 4, 5, 6
C) 3, 1, 2, 6, 7, 4, 5
D) 1, 3, 2, 4, 6, 5, 7

Quizplus · Accepted Answer

The correct sequence for endochondral ossification starts with mesenchymal cells developing into cartilage-producing cells (1), followed by the formation of a hyaline cartilage model (3). This cartilage then becomes calcified in the midregion (4), after which the periosteum begins to produce compact bone (2). Spongy bone tissue develops at the primary ossification center (5), the medullary cavity is formed (7), and finally, secondary ossification centers produce spongy bone in the epiphyses (6).

Put the Following in Correct Order for Endochondral Ossification