Question

For each of the following statements that is true about bone breakage and the repair process, insert T in the answer blank. For false statements, correct the underlined terms by inserting the correct term in the answer blank.

1. A hematoma usually forms at a fracture site.
2. Deprived of nutrition, osteocytes at the fracture site undergo apoptosis.
3. Nonbony debris at the fracture site is removed by phagocytes.
4. Growth of a new capillary supply into the region forms granulation tissue.
5. Osteoblasts from the medullary cavity migrate to the fracture site.
6. The fibrocartilage callus is the first repair mass to stabilize the broken bone.

Answer 1

True statements include the formation of a hematoma, apoptosis of osteocytes, removal of debris by phagocytes, and the formation of granulation tissue. One false statement is corrected to indicate that osteoblasts migrate from the periosteum, not the medullary cavity. The formation of a fibrocartilage callus is also true.

Step-by-step explanation:

1. T: A hematoma usually forms at a fracture site.

2. T: Deprived of nutrition, osteocytes at the fracture site undergo apoptosis.

3. T: Nonbony debris at the fracture site is removed by phagocytes.

4. T: Growth of a new capillary supply into the region forms granulation tissue.

5. False: Osteoblasts from the periosteum migrate to the fracture site.

6. T: The fibrocartilage callus is the first repair mass to stabilize the broken bone.