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consistency of the extracellular matrix

stresses without permanent distortion

.

Shock-absorbing because it is resilient.

Smooth surface allows sliding against it.

Essential for rowth develo ment of bone.

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-

Located in lacunae

- Fibers, ground substance

glycoproteins, elastic (in elastic cartilage)

Macromolecules, water, fibers bind together

and give firm, flexible properties to tissue.

No blood, nerve supply

Low metabolic rate.

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cartilage (exceptarticular cartilage of

joints.)

Contains blood, nervesupply, lymphatics.

Contains collagen

ers, ro asts

ya ne car age

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Found at ends ofbones,nose, trachea, larynx

.

Strong, rubbery,

ex e ssue.

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GH TH testosterone accelerates s nthesis of

glycosaminoglycans. Cortisone, estradiol inhibits synthesis.

Growth depends mainly on GH (somatotroopin)

Stimulates liver to produce somatomedin C oma ome n ac s on car age ce , s mua ng

growth

http://web.indstate.edu/thcme/mwking/glycans.html

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Interstitial growth Mitotic division of preexisting chrondrocytes

Synthesis of matrix

Expands cartilage matrix from within

Occurs in e i h seal lates articular cartila e

Appositional growth

Differentiation of perichondrial cells chondroblasts

Synthesis of matrix Increase in girth

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Epiphyseal Platenterstta rowt

http://web.indstate.edu/thcme/mwking/glycans.html

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fibers running in all directions in addition tocolla en.

Found in auricle of ear, walls of external

auditor canals, eustachian tubes,epiglottis, larynx

Maintains shape, deforms but returns to

shape; flexibility of organ; strengths andsupports structures.

Ear

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Elastic fibers (elastin)

Yellow color

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Elastic Cartilage

pgotts

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Fibrous Cartilage

a orm o connec ve ssue rans ona e ween ense connec ve

tissue and hyaline cartilage. Chondrocytes may lie singly or in pairs,but most often they form short rows between dense bundles ofcollagen fibres. In contrast to other cartilage types, collagen type I isom nan n rous car age.

is typically found in relation to joints (forming intra-articular lips, disksand menisci) and is the main component of the intervertebral disks,symphysis pubis.

merges imperceptibly into the neighbouring tissues, typicallytendons or articular hyaline cartilage. It is difficult to define theperichondrium because of the fibrous appearance of the cartilageand the radual transition to surroundin tissue t es.

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Note the rows of chondrocytes.Fibrocartilage is frequently foundin the insertion of tendons on the

epiphyseal hyaline cartilage.Picrosirius-hematoxylin stain.

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Intervertebral disks

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