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Location of hyaline cartilage Located at articular ends of long bones, nose, larynx, trachea, bronchii, ventral ends of ribs, epiphyseal growth plates Location of elastic cartilage located in pinna of ear, walls of auditory canal, auditory tube, epiglottis, cuneiform cartilage of larynx location of fibrocartilage Found in iv discs, articular discs, pubic symphysis, insertion of some tendons, meniscus Perichondrium dense connective tissue that surrounds cartilage, forms an interface between cartilage and tissue, supported by the cartilage, holds vascular, nerves, lymphatic tissue, necessary for regeneration of damaged cells. Interstitial growth growth from within, limited healing, mitotic division of pre-existing chondrocytes, ex. epiphyseal growth plates from hyaline cartilage Appositional growth growth by cell division in the perichondrium or surface of cartilage, more important and frequent joint cavity contains synovial fluid territorial matrix surrounds chondrocyte in lacunae, newly synthesized ecm Characteristic features of cartilage Extracellular matrix, gag, proteoglycans, chondrocytes, cells live in lacunae Functions of cartilage absorb shock, bear mechanical stresses without distortion, smooth surfaces for joints, support soft tissues, growth of long bones in body Hyaline cartilage fiber type type II collagen Fibrocartilage fiber type type I collagen elastic cartilage fiber type type II collagen and elastin fibers hyaline cartilage perichondrium perichondrium not present in articulating cartilage and epiphyseal growth plates fibrocartilage perichondrium perichondrium is not present elastic cartilage perichondrium perichondrium is present Cartilage avascular, no lymphatics, no innervations articular cartilage hyaline cartilage type II collagen ligament dense regular connective tissue type I collagen articular capsule fibrous layer, synovial membrane meniscus fibrocartilage, type I collagen epiphyseal growth plate hyaline cartilage, type II collagen articular cartilage lines the articular surface of bones involved in the joint, hyaline cartilage, type II collagen joint capsule dense connective tissue, with inner lining of synovial membrane, reinforced by ligaments synovial membrane lines non-articular surfaces, produces synovial fluid, doesn't sit on basal membrane, epithelial-like, regenerates well, rich blood supply