Ear Lobule is made-up of:
Correct Answer: Elastic cailage
Description: Ear lobule is made of elastic cailage, matrix with elastic as well as collagen fibers, thus it suppos and is highly flexible. Cailage: is a connective tissue. Chondrocytes are mature cailage cells. They are abundant extracellular matrix. They are avascular. Cailages are three types; Fibrocailage Hyaline cailage Elastic cailage Cailage Matrix Function Location Fibrocailage Type I collagen oriented parallel to stress plane Suppo with great tensile strength, resists compression and tension Annulus fibrosis of interveebral discs, Pubic symphysis Hyaline cailage Type II collagen, Chondroitin sulfate, keratin sulfate, hyaluronic acid and water Suppo tissue and organs, model for bone development Tracheal rings, Nasal septm, larynx, aicular surfaces of joints Elastic cailage Normal components of hyaline matrix plus elastic fibres Suppo with flexibility External ear, external auditory canal, epiglottis
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