During endochondral ossification the marrow cavity is formed immediately after:
a. formation of the secondary center of ossification
b. formation of a bony collar around the diaphysis
c. invasion of the periosteal bud
d. organization of the epiphysis for growth
Answer: c. invasion of the periosteal bud
Anatomy & Physiology
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Fill in the blank(s) with correct word
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Anatomy & Physiology