Histology of Cartilage and Bone Flashcards
Four properties of cartilage are?
Modified connective tissue
Avascular (nutrients diffuse through matrix)
Resists compression
Perichondrium is rich in blood vessels
Four properties of perichondrium are?
Composed of cells & matrix
Absent in fibrocartilage
Ensheaths the cartilage
Houses the blood vessels that nourish chondrocytes
Three functions of chondroblasts are?
Chondrocytes progenitor
Lines border between perichondrium and matrix
Produce the intercellular matrix & collagen fibers
Four properties of chondrocytes are?
Mature cartilage cell
Reside in space called the lacuna
Basophilic
Isogenous cell group
Two functions of chondrocytes are?
Synthetically active, secrete matrix
Synthesize type II collagen, proteoglycans & chondronectin
Territorial matrix surrounds the?
Lacuna
Cartilage Matrix is divided into?
Fibers
Ground substance
Cartilage fibers are?
Collagenous and elastic
Cartilage ground substance is made up of?
Glycosaminoglycans (chondroitin sulfates etc)
Proteoglycans
Water
Cartilage matrix provides?
Rigidity
Elasticity
Resilience
Cartilage matrix is?
Basophilic
Cartilage matrix shows?
Territorial matrix(surrounds lacuna) Interterritorial matrix
Cartilage growth is divided into?
Interstitial
Appositional
Interstitial cartilage growth is newly formed cartilage growing by?
Multiplication of cells throughout its substance
Addition of new cartilage over the surface of existing cartilage is?
Appositional cartilage growth
The types of cartilage are?
Hyaline
Elastic
Fibrous
Hyaline cartilage is found in?
Tracheal rings
Larynx
Nasal septum etc
Hyaline cartilage matrix is composed of?
Collagen type II
Hyaline cartilage cells are present singly or in groups of?
2 or 4 cells inside lacunae
Hyaline cartilage ground substance is?
Homogeneous
Basophilic