1. Chapter 6:
Tissues and Membranes

2. A. 4 types of tissues Epithelial tissue Connective tissue
Nervous tissue
Muscular tissue

3. I. Epithelial Tissue (p. 33)
Covers the body - “sheets” (except for glands)
Lines organs and body cavities
No blood supply
Apical Surface – free surface
Basement Membrane – acts as a anchor to cells
Function: protects, absorbs, secretes, filters
Examples: skin, glands, lining of the digestive and respiratory tracts

4. Types of Epithelial Tissue
Classified according to shape
1. Squamous – thin and flat cells

5. Cuboidal Epithelium
Cells are cube-like

6. 3. Columnar Epithelium
Cells are tall and narrow (kidney)

7. Classified also by layers
Simple – one layer
Stratified – multi layered

8. Ciliated Pseudostratified columnar

9. Epithelial Tissue Practice

10. II. Connective Tissue (p. 34)
Most abundant
Supports and joins various part of the body
Good blood supply except tendons and ligaments
Examples: cartilage, bone, blood, ligaments, tendons

11. Connective Tissue
Intercellular matrix – fills area between cells (non-living) able to bear weight
may be liquid, semi-solid, gel, hard
able to bear weight, stretch, withstand abuse

12. Connective Tissue B. Classification of Connective Tissue
1. Bone (Osseous tissue)
a. Bone cells are in tiny cavities called lacunae surrounded by layers of calcified matrix
b. Protect and Support

14. Connective Tissue - Cartilage
1. Hyaline Cartilage: rubbery & smooth; somewhat hard
found in larynx, attaches ribs to sternum, covers ends of bone

15. 2. Fibrocartilage
Discs in the spinal column

16. 3. Elastic Cartilage
a. found in external ear and nose

17. Dense Fibrous Tissue
Makes up tendons and ligaments

18. Loose Connective Tissue
Areoler tissue
Anchors body parts
Surround organs

19. Connective – Adipose Tissue
Stores Fat
Protection from extreme temperatures

20. III. Nervous Tissue Carry an impulse Two types of cells: Neurons:
Neuroglia: support the neurons

21. Nervous Tissue
Receive and conduct impulses
Neuron – nerve cells

22. IV. Muscle Tissue (p. 33) Made of specialized cells that can contract.
3 types of :

23. a. Skeletal Muscle
Voluntary
Striated
Movement
Multi-nucleated

24. 2. Smooth muscle
Not voluntary
Found in various organs
Non- striated

25. 3. Cardiac muscle Heart Striated Involuntary One nuclei per cell
Intercalated discs

26. Membranes: 3 Types: (p. 38) 1. Cutaneous Membranes Skin
Epidermis: Stratified epithelium tissue
Dermis: connective tissue

27. 2. Mucous Membrane (muscosa)
- Simple epithelium tissue
Line cavities that are open to the external environment
Many produce mucous
Lining of mouth, digestive tract, reproductive tract, urinary tract, respiratory tract

28. 3. Serous Membrane (Serosa)
Named according to location
Line cavities that are not open to the external environment
Visceral layer: the layer against the internal organs (organs=viscera)
Parietal layer: the layer against the inside wall of the cavity