1. Hyaline Cartilage - Connective Tissue
Composed of collagen fibers surrounded by a rubbery matrix
Less hard and more flexible than bone
Support the larynx, attaches ribs to sternum, covers the ends of bones, and makes up the entire fetal skeleton

2. Fibrocartilage and Elastic Cartilage
Fibrocartilage is highly compressible and forms the cushion-like discs between vertebrae
Elastic cartilage is found where elasticity is needed such as the outer ear.

3. Dense Fibrous Connective Tissue
Cells are fibroblasts or fiber forming cells
Matrix is mostly collagen fibers
Forms strong ropelike structures like ligaments and tendons
Ligaments join bone to bone
Tendons attach muscle to bone
Also makes up the lower layers of the skin

4. Areolar Connective Tissue
Most widely distributed connective tissue
Matrix contains all fiber types in a loose network making the tissue soft and pliable
Wraps organs to cushion and protect them
Holds organs together and in place
Can soak up excess fluid

5. Adipose Connective Tissue
Commonly called fat this tissue is areolar tissue in which fat globules predominate
Cells contain a large oil droplet that pushes cell contents to the sides and make cells appear empty
Under the skin to insulates the body
Surrounds some organs like the kidneys for protection
Fat cell deposits serve fuel storage

6. Reticular Connective Tissue
Delicate network of interwoven reticular fibers
Matrix fibers form a framework to support the lymph nodes, spleen, and bone marrow

7. Vascular Connective Tissue
Blood cells surrounded by a fluid matrix called plasma
Matrix fibers are visible during clotting
Functions as the transport vehicle for materials

8. Tissue Type #3 Muscle tissue

9. Muscle Tissue
Function is to produce movement and does so by contracting or shortening
Skeletal
-Under voluntarily control
-Packaged into organs by sheets of connective tissue and connected to the skeleton
-Long, cylindrical cells that shorten to pull bones and produce movement
-Cells are striated
-Contain many nuclei
Cardiac
-Found only in the heart
-Under involuntary control and functions to pump blood
-Cells are short and branching and they fit tightly together with gap junctions to allow for fast impulses across the muscle
-One nucleus per cell
Smooth
-Under involuntary control
-Surrounds hollow organs such as esophagus, stomach, intestines, bladder, uterus, and blood vessels
-Spindle shaped cells contract and relax to push substances through the organ
-No visible striations
-One nucleus per cell

10. Tissue Type #4 Nervous tissue

11. Nervous Tissue Neurons and supporting cells
Neurons have long extensions up to three feet which receive and send impulses from one part of the body to others
Supporting cells insulate and protect neurons

12. Tissue Repair (Wound Healing)
Regeneration: the replacement of destroyed tissue by the same kind of cells
Fibrosis: repair by dense connective tissue, that is, by the formation of scar tissue
Which occurs depends on the type of tissue damaged and the severity of the injury

13. Tissue Injury: Let’s Repair!
The capillaries become very permeable
Granulation tissue forms
The surface epithelium regenerates

14. Developmental Aspects of Cells and Tissues
Neoplasm: an abnormal growth of cells; sometimes cancerous
Hyperplasia: The enlargement of certain body tissues because of some local irritant or condition that stimulates the cells
Atrophy: a reduction in size or wasting away of an organ or cell resulting from disease or lack of use

15. ideas
Apoptosis
Antioxidants