Which of the following correctly lists the steps of fracture repair in sequence?
A)A hematoma forms, granulation tissue and fibrocartilage develop, osteoclasts and phagocytes clear away debris, bony callus forms.
B)A hematoma forms, osteoblasts arrive and produce new bone tissue, osteoclasts and phagocytes clear away debris, granulation tissue forms.
C)Phagocytes clear away debris, osteoblasts remove damaged bone tissue, and a hematoma forms.
D)A hematoma forms followed by formation of a bony callus that fibrocartilage replaces.

Question

Quizplus · Accepted Answer

The correct sequence of fracture repair is as follows: first, a hematoma forms, then granulation tissue and fibrocartilage develop, next osteoclasts and phagocytes clear away debris, and finally, a bony callus forms. Option A correctly lists the steps in this order. Option B is incorrect as it lists the development of granulation tissue before the arrival of osteoblasts, when in fact, osteoblasts arrive first in order to produce new bone tissue. Option C is incorrect as it lists osteoblasts removing damaged bone tissue which is not a step in fracture repair. Option D is incorrect as it suggests that fibrocartilage replaces a bony callus when in fact, it is the other way around- the bony callus is formed and then replaced by fibrocartilage.

Which of the Following Correctly Lists the Steps of Fracture