Small bones are supplied by
Correct Answer: Periosteal vessels
Description: Periosteal arteries
These are especially numerous beneath the muscular and ligamentous attachments.
They ramify beneath the periosteum and enter the Volkmann's canals to supply the outer 1/3 of the cortex.
In miniature long bones, the infection begins in the middle of the shaft rather than at the metaphysis because, the nutrient artery breaks up into a plexus immediately upon reaching the medullary cavity. In the adults, however, the chances of infection are minimized because the nutrient artery is mostly replaced by the periosteal vessels.
KEY CONCEPT:
Short bones are supplied by numerous periosteal vessels which enter their nonarticular surfaces.
Category:
Anatomy
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