ANP 1106 Lecture Notes - Lecture 3: Costal Cartilage, Chondroitin Sulfate, Bone Resorption

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Jackie Carnegie

Document Summary

3. 1 comparing the structure of bony tissues and cartilages. Cartilage: features between dense ct & bone (tough but flexible) Some terms relating to cartilage: collagen fibers (can have some elastic fibers, up to 80% h2o. Perichondrium: fibrous connective tissue membrane covering the external surface of the cartilaginous structures. In damages areas, perichondrium can form scar tissue become poorly vascularized cartilage repairs badly; ossification of cartilage with aging. Chondroblasts: immature cartilage cells - actively forming cartilage. Chondrocytes: mature cartilage cells - maintain cartilage. Lacunae: localized clusters of chondrocytes in cartilage. Most abundant; firm support + pliability; lots of collagen; appears glassy blue- white; chondrocytes - only 1-10% of volume. Location: embryonic skeleton, ends of long bones (epiphyseal plates in growing children), costal cartilages of ribs, cartilages of nose, trachea, larynx. Function: supports & reinforces, resilient cushioning & resists compressive stress: elastic cartilage: Like hyaline cartilage, but more elastic fibers. Function: maintains shape while giving lost of flexibility: fibrocartilage: