1 / 11

Osseous Tissue & Skeletal Structure

Osseous Tissue & Skeletal Structure. I. Structure of Bone. The Skeletal System: Primary Function. Support Storage: Minerals (Ca, PO 4 - ) & Lipids Blood Cell Production Protection Leverage. Osseous (Bone) Tissue Components. Connective tissue Calcium salts

herman-neal
Download Presentation

Osseous Tissue & Skeletal Structure

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 & Skeletal Structure I. Structure of Bone

  2. The Skeletal System:Primary Function • Support • Storage: Minerals (Ca, PO4-) & Lipids • Blood Cell Production • Protection • Leverage

  3. Osseous (Bone) Tissue Components • Connective tissue • Calcium salts • Osteocytes (bone cells) within lacunae (pockets) • Canaliculi-small canals feed osteocytes • Periosteum (fiber out,cellular in) • Figure 6-1c

  4. Bone Matrix • Ca3(PO4)2 + Ca(OH)2--> Ca10(PO4)6(OH)2 • calcium phosphate + calcium hydroxide-> hydroxyapatite Compression • Collagen fibers (protein) Tension • Osteocytes & other cell types

  5. Bone Cells • Osteocytes-mature bone cells within lacunae sandwiched between lamellae layers • recycle calcium & repair damaged bone • Osteoblasts-cuboidal & produce new bone • become osteocytes • Osteoprogenitor cells-stem cells • Osteoclasts-multinucleated WBC, osteolysis

  6. Microscopic Structure of Bone: Compact Bone

  7. Compact Dense/Solid walls Osteon- Haversian Canal Canals of Volkman Spongy Open inner network /surrounds marrow trabeculae=struts Compact & Spongy Bones

  8. Periosteum outer surface of bone fiber out/cellular inner 1.isolates bone 2.provides circulatory and nerve supply 3.bone growth & repair Endosteum lines marrow cavity, trabeculae & central canals growth,repair, remodel Periosteum & Endosteum

  9. Discussion Questions • What is bone tissue specilaized for? • Where do osteoblasts come from? Give function • From what do osteoclast arise? Give function • What are the inner and outer layers of tissue covering bone? Give function • How does calcification differ from ossification? • How do the two types of bone differ? • Around what structure are osteons organized?

More Related