Question

click and drag on elements in order. list the events of intramembranous ossification in the correct sequence: instructions. osteoblasts from the periosteum form a protective layer of compact bone over the spongy bone. fibrous connective tissue membranes form. osteoblasts deposit a spongy bone matrix. connective tissue cells become osteoblasts. osteoblasts become osteocytes when they become surrounded by matrix.

Explanation:

Intramembranous ossification starts with fibrous connective - tissue membrane formation. Then connective tissue cells differentiate into osteoblasts. Osteoblasts deposit a spongy bone matrix. As they get surrounded by matrix, osteoblasts become osteocytes. Finally, osteoblasts from the periosteum form a protective layer of compact bone over the spongy bone.

Answer:

1. Fibrous connective tissue membranes form.
2. Connective tissue cells become osteoblasts.
3. Osteoblasts deposit a spongy bone matrix.
4. Osteoblasts become osteocytes when they become surrounded by matrix.
5. Osteoblasts from the periosteum form a protective layer of compact bone over the spongy bone.