1 / 7

Osseous Tissue (Histology)

Osseous Tissue (Histology). Osseous Tissue. 1. Cells Osteocytes— mature bone cells Osteoblasts— bone-forming cells (germ cells or “bud” cells) Osteoclasts —bone-destroying cells (“breakers”) A. primarily collagen fibers flexibility

ekrista
Download Presentation

Osseous Tissue (Histology)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Osseous Tissue (Histology)

  2. Osseous Tissue 1. Cells • Osteocytes— mature bone cells • Osteoblasts— bone-forming cells (germ cells or “bud” cells) • Osteoclasts —bone-destroying cells (“breakers”) A. primarily collagen fibers • flexibility • tensile strength (the strength to endure stretching forces) B. calcium salts (hardness) • contain calcium and phosphorus • great compressional strength (the strength to endure squeezing forces) 2. Matrix

  3. Classification of Bone by Tissue Type Two basic types of Tissue 1. Compact bone • Homogeneous • Looks “smooth” 2. Spongy bone • Small needle-like pieces of bone • Many open spaces (like sponge) • Keep bones light Figure 5.2b

  4. Microscopic Anatomy of Bone Figure 5.3a http://www.youtube.com/watch?v=4qTiw8lyYbs&NR=1

  5. Microscopic Anatomy of Bone • 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 (Volkman’s) canal • Canal perpendicular to the central canal • Carries blood vessels and nerves

  6. Microscopic Anatomy of Bone • Lacunae • Cavities containing bone cells (osteocytes) • Arranged in concentric rings • Lamellae • Rings around the central canal • Sites of lacunae • Canaliculi • Tiny canals • Radiate from the central canal to lacunae • Form a transport system connecting all bone cells to a nutrient supply

  7. Microscopic Anatomy of Bone Figure 5.3b–c

More Related