Lecture 6 - Lecture 6: Skeletal Tissue I. Functions of...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 6: Skeletal Tissue I. Functions of Skeletal System A. Support B. Protection C. Movement D. Mineral Storage (Calcium + Phosphorus) E. Hematopoiesis (blood cell formation in red marrow) F. Energy Storage (lipids/fat stored in yellow marrow) II. Histology of Skeletal Tissue (Osseous Tissue) A. Different Cell Types 1. osteoprogenitor cells give rise to osteoblasts a. found in periosteum, endosteum, and canals 2. osteoblasts secrete proteins, Ca, P a. found on bone surface (where growth occurs) 3. osteocytes maintain bone integrity a. in the bone tissue itself, matrix surrounds 4. osteoclasts degrade and absorb bone during growth a. derived from white blood cells, on surface B. Chemical Composition 1. 33% collagenous fibers as in connective tissue 2. 67% mineral salts - calcium phosphate + carbonate 3. hardening depends on correct amount of each C. Classification of Bones 1. Long Bones – considerably longer than wide; shaft with 2 ends (most limb bones, finger bones, etc.) 2. Short Bones – roughly cube shaped (wrist
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/29/2012 for the course SCIE SYG2000 taught by Professor Bernhardt during the Fall '10 term at Broward College.

Page1 / 3

Lecture 6 - Lecture 6: Skeletal Tissue I. Functions of...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online