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A&P Chp. 5 add on II
Microscopic Anatomy of Bone
| Question | Answer |
|---|---|
| Osteon (Haversian System) | -a unit of bone containing central canal and matrix rings |
| Central (Haversian) Canal | -opening in the center of an osteon -carries blood vessels and nerves |
| Perforating (Volkmann's Canal) | -canal perpendicular to the central canal -carries blood vessels and nerves |
| Lacunae | -cavities containing bone cells (osteocytes) -arranged in concentric rings called lamellae |
| Lamellae | -rings around the central canal -sites of lacunae |
| Canaliculi | -tiny canals -radiate from the central canal to lacunae -form a transparent system connecting all bone cells to a nutrient supply |
| Interstitial Lamellae | -fills up empty spaces |