Post on 14-Apr-2018
7/30/2019 Cartilage [Compatibility Mode]
1/23
7/30/2019 Cartilage [Compatibility Mode]
2/23
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.
7/30/2019 Cartilage [Compatibility Mode]
3/23
-
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.
7/30/2019 Cartilage [Compatibility Mode]
4/23
cartilage (exceptarticular cartilage of
joints.)
Contains blood, nervesupply, lymphatics.
Contains collagen
ers, ro asts
ya ne car age
7/30/2019 Cartilage [Compatibility Mode]
5/23
7/30/2019 Cartilage [Compatibility Mode]
6/23
7/30/2019 Cartilage [Compatibility Mode]
7/23
7/30/2019 Cartilage [Compatibility Mode]
8/23
Found at ends ofbones,nose, trachea, larynx
.
Strong, rubbery,
ex e ssue.
7/30/2019 Cartilage [Compatibility Mode]
9/23
7/30/2019 Cartilage [Compatibility Mode]
10/23
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
7/30/2019 Cartilage [Compatibility Mode]
11/23
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
7/30/2019 Cartilage [Compatibility Mode]
12/23
7/30/2019 Cartilage [Compatibility Mode]
13/23
Epiphyseal Platenterstta rowt
http://web.indstate.edu/thcme/mwking/glycans.html
7/30/2019 Cartilage [Compatibility Mode]
14/23
7/30/2019 Cartilage [Compatibility Mode]
15/23
7/30/2019 Cartilage [Compatibility Mode]
16/23
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
7/30/2019 Cartilage [Compatibility Mode]
17/23
Elastic fibers (elastin)
Yellow color
7/30/2019 Cartilage [Compatibility Mode]
18/23
Elastic Cartilage
pgotts
7/30/2019 Cartilage [Compatibility Mode]
19/23
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.
7/30/2019 Cartilage [Compatibility Mode]
20/23
Note the rows of chondrocytes.Fibrocartilage is frequently foundin the insertion of tendons on the
epiphyseal hyaline cartilage.Picrosirius-hematoxylin stain.
7/30/2019 Cartilage [Compatibility Mode]
21/23
Intervertebral disks
7/30/2019 Cartilage [Compatibility Mode]
22/23
7/30/2019 Cartilage [Compatibility Mode]
23/23