4 steps of bone healing

1. hematoma 2. fibrocartilage callus 3. bony callus 4. mechanical stress

4 steps in order

2. fibrocartilage callus

new capillaries grow, repair tissue closes the gap

3. bony callus

osteoblasts and osteoclasts move in and replace the fibrocartilage with the spongy bone

4. mechanical stress

through mechanical stress the bone is shaped into a permanent patch

1. hematoma

blood filled swelling caused by the ruptured vessels in the break