What is the function of the 'Periosteal Bud' during endochondral ossification?
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Correct answer: It brings blood vessels and osteogenic cells into the calcified cartilage.
The periosteal bud is a vascular invasion that penetrates the bony collar and enters the dying cartilage model. It delivers the osteoprogenitor cells and hematopoietic stem cells required to start the primary ossification center.
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