ANFS140 Lecture Notes - Lecture 16: Mesenchymal Stem Cell, Hyaline Cartilage, Osteoblast

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Osteoclasts: orient themselves along the major forces in your bone. Changing the force on bones can cause fractures and malformation: in most long bones, they orient themselves parallel to it they will make channels along the dense bone. Osteoclasts aren"t layered: solubilize calcium phosphate and hydroxyapatite crystals. Secrete enzymes such as disacchridases, lysosomes and hcl. Digests matrix: eclampsia occurs when blood calcium levels drop, take co2 from blood and combine with water to form carbonic acid. H+ ion +bicarbonate is what is dissociates into. Bicarbonate goes into blood and h+ goes to external surface of osteoclast and helps solubilize calcium phosphate. Mar 7 cancellous/spongey/trabecular bone light, porous bone enclosing numerous large spaces that give a honeycombed or spongy appearance. The bone matrix, or framework, is organized into a three- dimensional latticework of bony processes, called trabeculae, arranged along lines of stress. Allows nutrients to enter and wastes to leave.

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