1. Connective Tissue Characteristics Is abundant makes up parts of organs Consists of cells separated by abundant extracellular matrix Structure is diverse and performs a variety of functions Encloses(around organs) & separates(layers between muscle, vessels, & nerves Connects(tendons are cable that connect muscle to bone Support & moves (cartilage & bones supports joints move Storing (fat energy bones minerals) Cushion & Insulate(adipose pads organs/conserve heat Transport(blood moves subs) Protect(Immune cells fight toxins/Bones shield for injury

2. Extra cellular matrix Has 3 main components These components give connective tissue their functional characteristics Ex bone bearing weight/tendons withstanding tension/blood moving substances 1.Protein fibers 2.Ground substance such as protein & nonprotein materials, macrophages, mast cells, lymphocytes, collagen, reticular, elastic, fibroblasts, osteoblasts, & chondroblasts 3.Fluid

3. Fibrocartilage Function:flexible capable of withstanding pressure Location:symphysis pubis, intervertebral discs, knee & jaw joints Structure:collagen fibers arranged in thick bundles,elastin, & chondrocytes

4. Hyaline Cartilage Function: reduces friction at ends of long bones, basis for making compact bone Location: at the ends of long bones, where ribs attach to sternum, nose, and embryonic skeleton Structure: chrondrocytes, elastin, collagen, firm, smooth, & glassy

5. Elastic Cartilage Function: provides rigidity with flexibility so elastic fibers return to original shape after stretching Location: ex. ear, epiglottis, & ear tubes Structure:elastic fibers,collagen, proteoglycans, & chondrocytes

6. Compact Bone Function: provides great strength, support by forming shell, stores minerals Location: outer portions of bones & shafts of long bones Structure: hard matrix made of osteocytes, lacuna, central canal,and lamellae Vascular

7. Cancellous Bone Function: has scaffolding to provide strength & support w/o weight of compact bone Location: ends of long bone, b/t skull bones, inside vertebra, & pelvis Structure: lattice scaffolding with trabeculae, & spaces holding hemotopeotic tissue

8. Dense Regular Collagenous Function: ability to withstand great pulling forces in direction of fibers, & stretch resistant Location: tendons & ligaments Structure: matrix composed of collagen fibers running in the same direction

9. Adipose tissue Function: to protect organs, hold vitamins, insulates Location: around organs, under skin Structure: composed of adipocytes (open ringlets of fluid)

10. Dense regular elastic connective Function: capable of stretching & recoiling in direction of fiber Location:ligaments b/t vertebrae(nuchal), & vocal cords Structure:matrix of regularly arranged collagen fibers, elastin, fibroblasts

11. Loose or areolar connective Function: loose packing or support of other tissues Location: widely distributed especially located in the basement membrane, between glands, & muscles Structure: elastin,collagen,fibroblast, macrophages & lymphocytes

12. Reticular Tissue Function: frame work of lymphatic tissue Location: spleen, lymph nodes, bone marrow, & liver Structure: many reticular fibers irregularly arranged

13. Blood Function: production of new blood cells(marrow) Location: yellow marrow of bone and in red marrow of cancellous Structure: red blood cells and white blood cells