HP 126 Lecture Notes - Lecture 3: External Occipital Protuberance, Foramen Magnum, Occipital Condyle

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Hyaline cartilage: collagen type ii fibers, found in ribs, trachea, larynx, helps add flexibility to rigid structures, resembles a solid structure with a few holes, most dense of the 3 forms of cartilage. Elastic cartilage: type ii and i collagen fibrous structures, makes up ears, nose, and epiglottis, resembles large holes in a perforated structure, middle density among the 3. Fibrocartilage: found between vertebrae spaces and pubic symposium, less dense than both elastic and hyaline, resembles waves/z shapes or threads. Adipose tissue: another name for fat- connective tissue, stores energy, absorbs shock, acts as insulation: microscopic bone and bone structure. Osteon: smallest functional unit of bone, forms in circles made of lamellae. Lamella: within osteons, cylinders around osteon center made of collagen, contain lacunae. Central canal: provides blood flow, o2, and nutrients to the bone cells. Lacuna: sacs of extracellular matrix fluid, holds osteoblasts, build new bone.

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