1. Connective Tissue

2. Types of Connective Tissue
Osseous Tissue (Bone Tissue)
Loose Connective Tissue
Areolar Tissue
Adipose Tissue
Reticular Connective Tissue
Dense Connective Tissue
Cartilage
Blood

3. Osseous Tissue Hard Calcified matrix containing many collagen fibers
Osteocytes lie in lacunae
Well vascularized

4. Location
Found in bones

5. Function Bone supports and protects
Provides levers for the muscles to act on
Stores calcium, minerals, and fat
Marrow inside bones- site for blood cell formation

6. Bone Tissue

7. Areolar Tissue Gel – like matrix composed of all types of fibers
Contains phagocytes, white blood cells

8. Location of Areolar Tissue
Lamina propria is found under mucous membranes
Internal organs

9. Functions of Areolar Tissue
Wraps and cushions organs
Phagocytes engulf bacteria
Holds and conveys tissue fluid (water, salts, nutrients)

10. Areolar Tissue

11. Adipose Tissue
Closely packed fat cells have nucleus pushed to the side by large fat droplet.
Similar matrix to areolar tissue

12. Location of Adipose Tissue
Under skin
Around kidneys and eyeballs
In bones
Within abdomen
In breasts

13. Function of Adipose Tissue
Provides reserve food fuel
Insulates against heat loss
Supports and protects organs

14. Cell membrane
Nucleus
Fat vacuole

16. Reticular Connective Tissue
Network of reticular fibers in a typical loose ground substance; reticular cells predominate.

17. Location of Reticular Tissue
Lymphoid organs (lymph nodes, bone marrow, and spleen)

18. Function of Reticular Tissue
Fibers form a soft internal skeleton (stoma) that supports other cell types (specially blood cells)

21. Dense Connective Tissue
Primarily collagen fibers
A few elastic fibers
Major cell type is the fibroblast

22. Location of Dense Connective Tissue
Tendons
Most Ligaments
Aponeurosis

23. Function of Dense Connective Tissue
Attaches muscles to bones or muscles
Attaches bones to bones
Withstands great tensile stress

24. Dense Connective Tissue

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26. Cartilage
Hyaline cartilage – abundant collagen fibers in rubbery matrix; blue-white appearance; most abundant
Elastic cartilage – yellowish appearance
Fibrocartilage

27. Location of Hyaline Cartilage
Forms most of the embryonic skeleton
Covers the ends of long joints in joint cavities
Forms coastal cartilage of the ribs
Cartilage of nose, trachea, and larynx

28. Location of Elastic Cartilage
Location of Fibrocartilage
External ear
Disk between vertebrae of spinal column

29. Function of Cartilage Tissue
Supports and reinforces
Has cushioning properties
Resists compression

30. Hyaline Cartilage

31. Vascular Tissue (Blood)
Blood cells surrounded by blood plasma
Fibers in blood are not visible until clotting occurs