Anatomy: Bone Formation
Which of the following could create an open, or compound, fracture? - correct answer when the broken
bone penetrates through the skin
What type of bone cell is primarily active when bone growth occurs? - correct answer osteoblast
A bone fracture that results in the bone being broken into many fragments is a ________. - correct
answer comminuted fracture
A fracture in the ________ can impair the lengthwise growth of bones in a child. - correct answer
epiphyseal plate
While playing soccer, Lauren received a ragged fracture to her fibula due to twisting her leg. This type of
fracture is ________. - correct answer spiral fracture
What determines where bone matrix will be remodeled? - correct answer the pull of gravity and
muscles on the skeleton and calcium ion levels in the blood
There are four stages in the healing of a bone fracture. Which of the following best illustrates the
sequence of these stages?
1. bony callus formation 3. fibrocartilage callus formation
2. bone remodeling 4. hematoma formation - correct answer 4, 3, 1, 2
When growing bones widen through appositional growth, what cells add bone matrix to the outside of
the diaphysis? - correct answer osteoblasts
During soccer practice, Sadie tripped and tried to stop her fall with her outstretched arms. Her humerus
broke and the broken ends were forced into each other. Sadie suffered a(n) __________ fracture. -
correct answer impacted
