1. SUPPORTIVE CONNECTIVE TISSUE Dr. Dalia Kamal Eldien

2. What are the subcategories of the three main categories of connective tissue?
Connective tissue proper
Fluid connective tissue
Supporting connective tissue
Loose connective
tissue
Dense connective
tissue
Blood
Lymph
Cartilage
Bone

3. SUPPORTIVE CONNECTIVE TISSUE
DEFINITION
The tissue that support and makes the framework of body is called supportive connective tissue.
Types
Supportive connective tissue is of two types:
Cartilage
Bone
Together bones and cartilage make up the skeleton.

4. SUPPORTIVE CONNECTIVE TISSUE
FUNCTIONS OF SUPPORTIVE CONNECTIVE TISSUE
Support
Protection
Storage of minerals (calcium and phosphorus)
Site for Hematopoiesis (red bone marrow )

5. SUPPORTIVE CONNECTIVE TISSUE

6. SUPPORTIVE CONNECTIVE TISSUE
CARTILGE:
 is a flexible connective tissue found in many areas in the bodies of humans and other animals, including the joints between bones, ribs, ear, nose, bronchial tubes and the intervertebral discs.
It is not hard and rigid as bone but is stiffer and less flexible than muscle.

7. Constituents of cartilage:
It is made up of cells called chondroblasts and chondrocytes, (chondro - cartilage) and extracellular matrix.
Extracellular matrix made up about 10% aggrecan, 75% water, and a mix of collagen fibers  and elastic fibers in varying proportions based on local biomechanical needs of the organs in which it is located.

8. SUPPORTIVE CONNECTIVE TISSUE
CARTILAGE
Features
Flexible tissue
Contains no blood vessels or nerves
Matrix contains up to 80% water
Cell type – chondrocyte

9. chondrocytes

10. chondrocytes

11. SUPPORTIVE CONNECTIVE TISSUE
Function of cartilage
Supports soft tissue of the body.
It provides smooth sliding surfaces in the joints to facilitate bone movement.
Cartilage is essential for the growth of the long bones before and after birth.

12. SUPPORTIVE CONNECTIVE TISSUE
Types:
Hyaline
Elastic
Fibrocartilage

13. SUPPORTIVE CONNECTIVE TISSUE
HYALINE CARTILAGE
This type of cartilage has a glassy appearance when fresh, hence its name, as hyalos is greek for glassy. 
Hyaline cartilage has widely dispersed fine collagen fibers,which strengthen it
it is the weakest of the three types of cartilage.
Description
collagen fibers
Chondroblasts produce matrix
Chondrocytes lie in lacunae (which accommodate cartilage cells )

14. SUPPORTIVE CONNECTIVE TISSUE
HYALINE CARTILAGE
Function
Supports and reinforces
Acts as a cushion
Resists repetitive stress

15. Hyaline cartilage

16. SUPPORTIVE CONNECTIVE TISSUE
Location
Ends of long bones
Costal cartilage of ribs
Cartilages of nose, trachea, and larynx Location

17. SUPPORTIVE CONNECTIVE TISSUE
ELASTIC
In elastic cartilage, the chondrocytes are found in a threadlike network of elastic fibers within the matrix.
Elastic cartilage provides strength, and elasticity, and maintains the shape of certain structure such as the external ear.

18. Description
Similar to hyaline cartilage
More elastic fibers in matrix
Function
Maintains shape of structure
Allows great flexibility

19. Elastic cartilge

20. SUPPORTIVE CONNECTIVE TISSUE
Location
Supports external ear
Epiglottis

21. SUPPORTIVE CONNECTIVE TISSUE
FIBROCARTILAGE
This is the strongest kind of cartilage, because it has alternating layers of hyaline cartilage matrix and thick layers of dense collagen fibers oriented in the direction of functional
Description
Matrix similar, but less firm than hyaline cartilage
Thick collagen fibers predominate
Chondrocyte are lie in rows and isogenic groups
Function
Tensile strength and ability to absorb compressive shock

22. Fibro cartilge

23. SUPPORTIVE CONNECTIVE TISSUE
Location
Inter vertebral discs
Discs of knee joint

25. Thank you