Practice question · Put in order
Arrange these steps in the order a bone fracture heals.
- A blood clot forms at the fracture site
- A soft cartilaginous callus bridges the gap
- The bone is remodelled back toward its original shape
- The callus is replaced with bone
- Inflammatory cells arrive and clear debris
Hints
- Healing begins with the blood supply the tissue has.
- A soft bridge forms first and is later converted to bone.
Show the answer
- A blood clot forms at the fracture site
- Inflammatory cells arrive and clear debris
- A soft cartilaginous callus bridges the gap
- The callus is replaced with bone
- The bone is remodelled back toward its original shape
Why
Healing depends on bone’s vascularity from the first step, the clot brings the cells that begin repair. The temporary cartilaginous callus is later replaced and then remodelled, which is why a healed fracture can eventually become almost invisible.
Practise Connective Tissues: Blood, Cartilage and Bone
The app has 5 more questions on this lesson, and keeps your place in the course. Biology I is free to start.
More questions on Connective Tissues: Blood, Cartilage and Bone
- Why does cartilage heal so much more slowly than bone?
- A blood sample has a haematocrit of 42 %. If the sample is 5.0 mL, what volume of plasma does it contain, in…
- In connective tissues, matrix determines functional properties rather than the cellular content. How does…
- Sort each tissue by the state of its ground substance.
- Which statements about blood as a connective tissue are correct?