General anatomy
Types of Cartilages
HYALINE
ECM Contains Type 2 Collagen , Aggrecan , GAGs , Proteoglycans
Chondrocytes & Chondroblasts
Glassy , Homogenous , Basophilic
Perichondrium is Present (Except at Epiphyses & Articular cartilage)
Thin collagen Fibres
Weakest type of Cartilage
Calcification occurs during ENDOCHONRAL OSSIFICATION & with old age
Aids in Sliding within joint
Ex- Nasal Septum , Cricoid Cartilage , Thyroid Cartilage , Arytenoids (except for Apices) , Tracheal Rings , Bronchi , Articular Cartilages at ends of bone , Epiphyseal plate , Costal Cartilages of Ribs , Embryonic Skeleton
ELASTIC
ECM Contains Type 2 Collagen , Aggrecan , GAGs , Proteoglycans
Chondrocytes & Chondroblasts
Yellow
Perichondrium is Present
Elastic Fibres
Stronger than Hyaline Cartilage
No Calcification
Provides Flexible Shape and Support
Ex- Apices of Arytenoids , Corniculate and Cuneiform Cartilages , Epiglottis , Eustachian Tube/Pharyngotympanic Tube , Pinna/Auricle , External acoustic Meatus
FIBROCARTILAGE
ECM Contains Type 1 Collagen (Mainly) , Type 2 Collagen , Aggrecan
Chondrocytes & Fibroblasts
White , Eosinophilic
Perichondrium is Absent
Thick collagen Fibres
Strongest type of Cartilage
Calcification occurs only with Bone repair
Provides Resistance to Tearing and Compression
Ex- Intervertebral Discs , Menisci , Pubic Symphysis , Glenoid labrum , Acetabular labrum , Manubriosternal joint , Lining of Bony Grooves for Tendons , Articular Discs (Temporomandibular joint , Sternoclavicular joint)
Note - Hyaline Cartilage is Most Common type of Cartilage and Weakest type
Image Attribution and license
Attribution :
By Catherine A. Bautista, Hee Jun Park, Courtney M. Mazur, Roy K. Aaron, Bahar Bilgen - (2016). "Effects of Chondroitinase ABC-Mediated Proteoglycan Digestion on Decellularization and Recellularization of Articular Cartilage". PLOS ONE 11 (7): e0158976. DOI:10.1371/journal.pone.0158976. ISSN 1932-6203.-"The work is made available under the Creative Commons CC0 public domain dedication.", CC0, https://commons.wikimedia.org/w/index.php?curid=87739156
By Berkshire Community College Bioscience Image Library - Connective Tissue: Elastic Cartilage, CC0, https://commons.wikimedia.org/w/index.php?curid=70159660
By Henry Vandyke Carter - Henry Gray (1918) Anatomy of the Human Body (See "Book" section below)Bartleby.com: Gray's Anatomy, Plate 295, Public Domain, https://commons.wikimedia.org/w/index.php?curid=792381