tissues and integumentary AC

1. Epithelial Tissues
Connective Tissues
and
The Integument

2. Epithelial Tissues
Excercise 8
Tissue - A aggregate of with similar structure and
function.
Histology - The science that studies tissues.

3. Epithelial Tissue –
Groups of cells that are
 Protective
 Absorptive
 Secretory
 Transport
 Excretory
 Closely attached to each other to form tight sheets
lacking in extracellular matrix and vascularization.
 Cells rest on basal lamina which in turn rests on
connective tissue.
 Free on one end (Apical Surface).

4. Epithelial Tissue
Simple Pseudostratified Stratified
Ciliated Nonciliated
Squamous Squamous
Cuboidal Columnar
Columnar
Transitional
Ciliated Nonciliated

5. Simple Squamus

6. Simple Cuboidal

7. Ciliated Columner

8. Pseudo Stratified

9. Stratified Squamus

10. Stratified Transitional

11. Connective Tissue
Perform binding, support ,transport and nutritive functions
Connective tissue has three types of fibers
Collagenous (white) Fibers –Relatively large, thick bundels.
Reticular Fibers - Minute network of very fine threads stains
well so it looks black.
Elastic (yellow) Fiber- contains elastin protein. Found in
organs and tissues that must yield to changes in shape.

12. Connective Tissue Matrix
Ground Substance
An amorphous solution or gel around the cells and
fibers
Extra cellular fluid consisting of fibers, fluids, ground
substance and or inorganic compounds form the
connective tissue matrix.
Cell types seen in matrix are fibroblasts, adipose cells,
mast cells, plasma cells, macrophages and other types
of blood cells.

13. Connective Tissue
Connective Tissue Proper Special Connective Tissue
Loose Fibrous (Areolar) Hemopoietic (Blood-Forming)
Dense Fibrous Regular Support
Irregular Cartilage Hyaline
Reticular Elastic
Adipose Fibrocartilage
Bone Compact
Spongy

14. Areolar Connective Tissue

15. Dense Fibrous
Regular Irregular

16. Reticular

17. Adipose

18. Blood

19. Hyaline Cartilage