Chapter 49 Flashcards
1
Q
Developmental of the skeletal system
A
. Develops from the mesodermal and neural crest cells of the developing embryo
- 4th week : development of the vertebrae of the axial skeleton
- Late in the 4th week: the paddle - shaped limb buds of the lower extremities make their appearance
- 9th week: ossification begins with the appearance of ossification centers in the lower thoracic and upper lumbar vertebrae
