Answer:
The correct order is:
- 1. A hematoma forms at the fractured area.
- 2. A mass of tissue containing cells that produce collagen fibers forms. These collagen fibers extend across the broken bone and attach the pieces back together.
- 3. Osteoblasts and osteoclasts arrive at the fracture and begin to produce bone tissue there.
- 4. The broken bone begins to take the shape it had prior to the fracture.
Step-by-step explanation:
After the fracture of a bone several events occur that involve the regeneration and remodeling of the broken bone:
- Hematoma in the fracture area is produced by the bleeding of the bone marrow, especially when it occurs in long bones.
- The collagen fibers are intended to initiate the repair process, trying to join the bone fragments that have separated. The purpose of this is to build a soft tissue base on which the new bone will grow.
- Osteoblasts and osteoclasts are responsible for the process of ossification and remodeling, respectively. Only a bone scar will remain at the fracture site.
- With the process of ossification and remodeling, the bone acquires the same shape it had before the injury.
This whole process is necessary for the morphological and functional recovery of a bone when it has suffered a fracture.