Cartilaginous Tissue Characteristics PDF
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This document provides an overview of the characteristics of cartilaginous tissue, encompassing its structure, function, and nutrient supply. It details the components such as collagen and chondroitin, and explains how nutrients reach the tissue, emphasizing perichondrium. It also touches on the differences between various types of cartilage (articular and fibrocartilage).
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CHARACTERISTICS OF CARTILAGINOUS TISSUE Cartilage is formed by a dense network of collagen and elastic fibres firmly embedded in chondroitin sulphate. ▪ Strength: due to collagen. ▪ Elasticity: elastic fibres. ▪ Flexibility (resilience): due to chondroitin sulphate. Structure: a) Chondrocytes: isola...
CHARACTERISTICS OF CARTILAGINOUS TISSUE Cartilage is formed by a dense network of collagen and elastic fibres firmly embedded in chondroitin sulphate. ▪ Strength: due to collagen. ▪ Elasticity: elastic fibres. ▪ Flexibility (resilience): due to chondroitin sulphate. Structure: a) Chondrocytes: isolated (rare) or in groups within spaces called lacunae. b) Ground substance without blood vessels or nerve endings (nutrition is provided by perichondrium). c) Perichondrium: a cover of dense irregular connective tissue (vascularised and innervated) on the surface of cartilage. Exception: fibrocartilage, articular cartilage and epiphyseal discs. © Copyright Universidad Europea. Todos los derechos reservados Gel-like component Glycosaminoglycan (GAG) Heteropolysaccharide provides support and flexibility because it contains and captures water WHAT IS PERICHONDRIUM? Fibrous perichondrium (Outer layer) Chondrogenic perichondrium (Inner layer) Isogenous group © Copyright Universidad Europea. Todos los derechos reservados PERICHONDRIUM ☺ Feeds cartilage. CHONDROGENIC (inner) Chondrogenic cells that form chondroblasts and chondrocytes FIBROUS (outer) w/ few fibroblasts © Copyright Universidad Europea. Todos los derechos reservados CARTILAGE NUTRITION Nutrient supply depends on the diffusion of gaseous metabolites and small molecules from the perichondrium through the ground substance. ▪ Articular cartilage and fibrocartilage do not have perichondrium. Articular cartilage (hyaline) obtains the nutrients from the synovial fluid. © Copyright Universidad Europea. Todos los derechos reservados
