Skip to main content
UploadLanguage (EN)Support
BusinessMobileSocial MediaMarketingTechnologyArt & PhotosCareerDesignEducationPresentations & Public SpeakingGovernment & NonprofitHealthcareInternetLawLeadership & ManagementAutomotiveEngineeringSoftwareRecruiting & HRRetailSalesServicesScienceSmall Business & EntrepreneurshipFoodEnvironmentEconomy & FinanceData & AnalyticsInvestor RelationsSportsSpiritualNews & PoliticsTravelSelf ImprovementReal EstateEntertainment & HumorHealth & MedicineDevices & HardwareLifestyle
BPKIHS, profile picture
Uploaded byBPKIHS
PPT, PDF15,030 views

Cartilage

Cartilage is a specialized connective tissue composed of chondrocytes embedded in an extracellular matrix. It is avascular and provides structure, support, and acts as a shock absorber. There are three main types of cartilage - hyaline cartilage found in joints, elastic cartilage in the ear, and fibrocartilage in intervertebral discs. Hyaline cartilage contains collagen type II and glycosaminoglycans that allow it to withstand compression. Elastic cartilage contains elastic fibers that give it flexibility. Fibrocartilage contains collagen types I and II and connects bones together.

Health & Medicine◦
Related topics:
Human Biology Insights•
Downloaded 126 times
CARTILAGE Prepared By: Bikram Adhikari Roll no.: 03
Introduction  Cartilage is a specialized form of connective tissue  Mesodermal in origin  Composition of cartilage :  Cellular component:  Chondrocytes  Chondroblast and
 Composition of cartilage(contd..)  Extracellular matrix  Fibers:  collagen fibres,  elastic fibres  Ground substance:  Glycosaminoglyans (GAG)  Chondriotin sulphate,  Keratan sulphate,  Hyaluronic acid
 Avascular  No lymphatics vessels and nerve  Perichondrium  layer of dense connective tissue  2 layers:  Chondrogenic layer (inner)  Fibrous layer (outer)
Functions of Cartilage:  To bear mechanical stresses without permanent distortion.  Cartilage is a shock-absorbtion  Provide Sliding area for joints - facilitates bone movements.  Development and growth of long bones both before and after birth.
Types Of Cartilage  3 types: 1. Hyaline cartilage 2. Yellow Elastic cartilage 3. White Fibro cartilage
1.Hyaline Cartilage  Fresh hyaline cartilage is bluish-white and translucent  Chondrocytes  have an elliptic or round  Cell are arranged in group: (isogenous group or cell nest)
Matrix consist:  Type II Collagen fiber (basophilic)  Chondroitin 4-sulfate  Keratan sulfate  Hyaluronidase  Chondronectin Hyaline Cartilage (contd..)  Territorial matrix (lacunar capsule)  Inter-territorial matrix
Examples of Hyaline Cartilage:  Articular cartilage  Epiphyseal plate  Larynx: Cricoid and artenoid cartilages Costal cartilageTrachea, bronchi and bronchioles Fetal cartilage
 Fresh elastic cartilage has a yellowish color 2.Yellow elastic Cartilage
Yellow elastic Cartilage(contd..)  Chondrocytes:  Large, scattered  Matrix  Elastic fibres+ collagen type II  Pericondrium present
Examples of Yellow elastic cartilage  Auricle of the ear,  External auditory canals,  Epiglottis, and  Cuneiform cartilage  Apical part of arytenoid cartilage
3. White fibro Cartilage  No identifiable Perichondrium  Chondrocytes: arranged in linear group separated by collagen fibers  Matrix: Collagen I type + collagen II type collagen
Pubis symphysisIntervertebral disc Manubriosternal joint Intervetebral disc Examples: White fibro Cartilage:
References Singh Indirbir. 2011. Pages 93-97 in Text book of Human Histology. 6th edition. Jaypee Brothers medical publishers. New delhi  Eroschenko Victor P. Pages 65-72 in Difiore’s Atlas of Histology.10th edition. Lippincott Williams & Wilkins. 351 West Camden Street Baltimore.  Junqueira luis Caralos, Carneiro Jose. Chapter 7 in Basic histology text and atlas,11th edition, McGraw-Hill’s.  Graaff Kent Van De. Pages 141, 158,164,181,608, in Human Anatomy. 6th edition. McGraws-Hill’s.  Standring Susan. Page 83-87, 742. Gray’s Anatomy.39th edition. Edinburgh: Churchill Livingstone
ANY QUESTIONS ????