Compare how nutrients reach individual osteocytes in compact bone and in spongy bone
What will be an ideal response
In spongy bone, nutrients reach osteocytes by diffusing through the canaliculi from capillaries in the endosteum surrounding the trabeculae. In compact bone, nutrients travel from the blood supply of the medullary cavity through perforating (Volkmann's) canals that meet up with a central canal for each osteon. From a central canal, canaliculi connect with osteocytes.
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How does the caudal fin of a fish generate thrust?
What will be an ideal response?
The boundary of the retina is called the ________.
Fill in the blank(s) with the appropriate word(s).
The layer of the tooth where blood vessels and nerves are found is the ________.
A. root B. enamel C. pulp D. dentin
The skull bone that forms the chin is also the only bone connected to the skull by a freely moveable joint. This bone is the
A. hyoid. B. mandible. C. maxilla. D. vomer. E. mental bone.