ANP 1106 Lecture Notes - Lecture 3: Bone Marrow, Hyaline Cartilage, Medullary Cavity

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

Document Summary

Bone contains calcium, it is resorbed & transferred to bloodstream when need. Cartilage: has dense ct and bone, giving toughness with flexibility stronger than ct. It has collagen fibers giving some elastic fibers. Perichondrium: is dense irregular ct that surrounds the cartilage of developing bone. Lacunae: (little hole) clusters of chondrocytes in cartilage for osteocytes. 3 types of cartilages: hyaline cartilage: most common skeletal cartilage, provides support with flexibility and cushioning. In ends of long bones: elastic cartilage: similar to hyaline, but contain more stretchy elastic fibers-lots of flexibility with keeping shape. In ears: fibrocartilage: has strength with absorbance to compressive shock. Bone: calcium salts hardness/strength for support + protection. Osteogenic cell (stem cell) osteoblast (matrix cell) osteocyte (mature bone cell) osteoclast (bone resorbing cell) Osteon system: structural unit of compact bone. Osteon: long cylinder running parallel to the long axis of bone. Lamellae: tiny group of tubes of bone matrix.