HLSC 1200U Study Guide - Midterm Guide: Dense Irregular Connective Tissue, Joint Capsule, Fibrocartilage
Document Summary
Functions of skeletal cartilages and their important structural components. Hyaline cartilage: most common type fine collagen fibers. Elastic cartilage: more elastic fibers than cartilage fibers, more flexible. Fibrocartilage: strong collagen fibers, withstand tension and pressure. Mineral homoeostasis: calcium and phosphorus stored and released. Blood cell production: red bone marrow produces blood cells. Lightweight (more spaces: reduces overall weight, protect & support red bone marrow, blood cells, yellow marrow medulla cavity, storage site for adipocytes/triglycerides. Concentric lamellae: outside of bone, osteon, compact (heavy) with few spaces, protection & support, weight + bearing + movement. Major cells involved in bone physiology and their functional differences. Osteogenic cell: unspecialized cells develop into osteoblast; only bone cell to undergo cell division. Osteoblast: synthesize + secrete collagen strength, initiate calcification, trap in turns into osteocyte. Osteocyte: mature bone cell, most numerous, maintain daily metabolism. Osteoclast: monocytes, concentrated in the endosteum breakdown bone tissue.
