CHAPTER 7 Flashcards
Main features of the
extracellular matrix; Hyaline Cartilage
Homogeneous, with type II collagen
and aggrecan
Aggrecan consist large proteoglycan, chondroitin sulfate and keratan sulfate to withstand compressive loads
Major cells of Hyaline Cartilage
Chondrocytes, chondroblasts
Typical arrangement
of chondrocytes in Hyaline Cartilage
Isolated or in small isogenous groups
Presence of
perichondrium in Hyaline Cartilage
Yes (except at epiphyses and articular
cartilage)
Hyaline Cartilage Main locations
Many components of upper respiratory
tract;
articular ends epiphyseal
plates of long bones;
fetal skeleton
Main functions of Hyaline Cartilage
Provides smooth, low-friction surfaces
in joints; structural support for
respiratory tract
Main features of the
extracellular matrix of Elastic Cartilage
Type II collagen, aggrecan, and darker
elastic fibers
Major cells of Elastic Cartilage
Chondrocytes, chondroblasts
Typical arrangement
of chondrocytes in Elastic Cartilage
Usually in small isogenous groups
Presence of
perichondrium in Elastic Cartilage
Yes
Elastic Cartilage Examples
External ear,
external acoustic
meatus,
auditory tube;
epiglottis and
certain other laryngeal cartilages
Main functions of Elastic Cartilage
Provides flexible shape and support
of soft tissues
Main features of the extracellular matrix of Fibrocartilage
Type II collagen and large areas
of dense connective tissue with
type I collagen
Major cells of Fibrocartilage
Chondrocytes, fibroblasts
Typical arrangement
of chondrocytes in Fibrocartilage
Isolated or in isogenous groups
arranged axially
