MCAT Question A Day - 7/11/13 - Answer!
Which of the following is true about the development of bone?
A. Fewer bones of the body form by intramembranous ossification than from endochondral ossification.
B. More bones of the body form by intramembranous ossification than from endochondral ossification.
C. Approximately the same number of bones form by intramembranous ossification and endochondral ossification.
D. Compact bone develops by endochondral ossification, while spongy bone forms by intramembranous ossification.
The correct answer is (A). Only the flat bones of the skull ossify by intramembranous ossification. All other bones start off as hyaline cartilage and ossify by endochondral ossification.
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