1. Totally Terrific Tissues

2. Tissues
A group of similar cells that work toward a common structure and function.

3. Cell Physiology most cells in a tissue will:
Exhibit irritability (respond to a stimulus)
Digest food
Excrete wastes
Reproduce
Grow
Metabolize
Cells of a specific tissue type have additional specialized functions.

4. THERE ARE 4 TYPES OF TISSUE
1. EPITHELIA
2. CONNECTIVE
3. MUSCULAR
4. NERVOUS

5. I. EPITHELIAL Makes Linings, coverings, and glandular tissue
4 Functions:
1.Protection: Skin
2.Absorption: Food
3.Filtration: Cilia
4.Secretion: Oil, Sweat

6. 5 Characteristics 1.Cells fit closely together in sheets or membranes
2.Always one unattached (free) surface
3. Lower surface rests on a basement membrane
4.No blood supply of their own
5.Regenerate easily when nourished

7. 2 Ways to Classify 2.Cell Shape Squamous: Flat, like fish scales
Columnar: Columns
Cuboidal: Cubes, dice

8. Classification (cont.)
2. Cell Arrangement
Simple: one layer
Stratified: more than one layer

9. 2. Connective Tissue 3 Functions 2 Characteristics Connects body parts
Supports
Binds
2 Characteristics
Most have a great blood supply
EXCEPT: tendons, ligaments, cartilage
Connective cells make a non-living substance , called the matrix, that can be liquid, soft, or hard

10. 5 Examples of Connective Tissue
1. Bone (Osseous)
Bone cells live in cavities.
They secrete a hard substance

11. 5 Examples of Connective Tissue
2. Cartilage
Larynx, attaches ribs to sternum, covers bone ends, external ear, vertebral discs

12. 5 Examples of Connective Tissue
3. Dense Connective
Strong and rope-like
TENDONS: Connect bone to muscle
LIGAMENTS: Connect bone to bone

13. 5 Examples of Connective Tissue
4. Loose Connective
Packing tissue, glue, squishy protection, insulation
ADIPOSE = FAT

14. 5 Examples of Connective Tissue
5. Blood
Blood cells in a fluid (non-living substance)
Transportation

15. 3. Muscle Tissue
Function : CONTRACT, shortens to produce movement

16. 3 Types of Muscle Tissue Classification
1.Skeletal:
Voluntary, long cells with stripes, lots of nuclei (cells look like a slinky in the microscope)
Attached to bones

17. 3 Types of Muscle Tissue Classification
2. Cardiac:
Involuntary cells (you don’t have to control them)
Cells have stripes, look broken, each cell has one nucleus

18. 3 Types of Muscle Tissue Classification
3. Smooth:
Found in walls of hollow organs
Cells have NO stripes, look like thread, one nucleus
Involuntary

19. Silly Skeletal Muscle Tissue
Slimy Smooth Muscle Tissue
Crazy Cardiac Muscle Tissue

20. 4. Nervous Tissue Functions Tissue Classification
Irritability and Conductivity
Receive and send electrochemical impulses
Tissue Classification
NEURONS