Question

drag and drop the steps of fracture healing in the appropriate order from broken bone to healed. bleeding occurs forming a clot and swelling occurs phagocytes (wbc) come into the area and clean up dead cells and germs soft callus forms from chondroblasts, osteoblasts, and fibroblasts soft callus hardens to a bony callus excessive bone tissue is reabsorbed by osteoclasts. osteoclasts come into the area and clean up dead bone fragments

Explanation:

1. Initial Injury Response (Bleeding): When a bone breaks, blood vessels are damaged, so bleeding occurs, forming a clot (hematoma) and causing swelling. This is the first step.
2. Inflammatory Phase (Phagocytes): After the clot forms, white blood cells (phagocytes) move into the area to clean up dead cells, debris, and fight any potential infection. This happens after the initial bleeding and swelling.
3. Soft Callus Formation: Next, cells like chondroblasts, osteoblasts, and fibroblasts start to form a soft callus. This is a connective tissue structure that bridges the broken bone ends.
4. Bony Callus Formation: The soft callus then hardens into a bony callus as osteoblasts deposit bone matrix, turning the soft tissue into bone-like tissue.
5. Bone Fragment Cleanup (Osteoclasts for Fragments): Osteoclasts come in to remove dead bone fragments. This step is part of the process of preparing the area for proper healing and remodeling.
6. Bone Remodeling (Excess Tissue Reabsorption): Finally, osteoclasts reabsorb any excessive bone tissue that was formed during the healing process, and the bone is reshaped to its original (or near - original) structure.

So the order from broken bone to healed is:

1. Bleeding occurs forming a clot and swelling occurs
2. Phagocytes (WBC) come into the area and clean up dead cells and germs
3. Soft callus forms from chondroblasts, osteoblasts, and fibroblasts
4. Soft callus hardens to a bony callus
5. Osteoclasts come into the area and clean up dead bone fragments
6. Excessive bone tissue is reabsorbed by osteoclasts.

Answer:

1. Bleeding occurs forming a clot and swelling occurs
2. Phagocytes (WBC) come into the area and clean up dead cells and germs
3. Soft callus forms from chondroblasts, osteoblasts, and fibroblasts
4. Soft callus hardens to a bony callus
5. Osteoclasts come into the area and clean up dead bone fragments
6. Excessive bone tissue is reabsorbed by osteoclasts