1. Tissues Pg

2. What is a Tissue?
A group of cells with similar structure and function.
Histology is the study of tissue.

4. How can we grow tissues? How can we make cells of each tissue type?
Through the use of stem cells.
How do we grow stem cells?
What is a stem cell?
Growing
Stem Cells
What is a stem
cell?

6. Stem Cell Diagram
STEM CELL
Tissue
Organ System

7. The Controversies and Possibilities of Stem Cells
PBS
VIDEO
STEM CELLS
Quicktime
Movie
Adult Stem
Cells

8. Where could Stem Cells Lead?
How could we use this technology on humans?
Newt Arm Regeneration

9. Epithelial Tissue Epithe = laid on / covering
Lining, covering, and glandular tissue of the body.
Jobs: Protection, Absorption, Filtration, Secretion

10. How are Epithelial Cells Made?
Mapping Cell Fates

11. What are the 2 Parts of tissues?
Apical Surface: Exposed surface of the cell. Free side. May have cilia or villi
Basement Membrane: Lower surface
Epithelial tissue is Avascular: no blood supply. Diffusion.

12. Names attached to Tissues
Number of Layers
Simple = one layer
Stratified = more than one layer
Describing Shape
Squamous cells = Flat (SQUAM = scale)
Cuboidal cells = cube-shaped
Columnar cells = column shaped

13. Types of Epithelium and their use
Simple Epithelia
Stratified Epithelia
Glandular Epithelia

14. Simple Epithelia: Thin, used to absorb, secrete, and filter
Simple Squamous Epithelium
Air sacs of lungs, capillary walls, and lines arteries and body cavities. Fig Flat and tight fitting
Simple Cuboidal Epithelium
In glands and ducts. Make up the tubes in the body. Kidneys, Pancreas, Salivary Glands. Fig 3.16b

15. Simple Squamous Epithelium
Make up the capillaries and Alveoli, allows for diffusion.

16. Simple Cuboidal Epithelium
Treating
Diabetes
Stem-Cell
Function for secretion and absorption. Line the kidneys.

17. Simple Epithelium continued. Fig 3.17
Pseudostratified Columnar Epithelium
Cells are different heights. Absorption and secretion. Respiratory tract. Moves mucous and dust away from lungs. Often Cilliated.
Simple Columnar Epithelium
Tall cells. Mucous. Open to outside- mucus membranes. Fig 3.16b Absorption and secretion. Line respiratory and dig. System.

18. Pseudostratified Columnar Epithelium

19. Simple Columnar Epithelium
In the Intestine

20. What are the types of Stratified Epithelia?
Stratified Squamous Epithelium
Statified Cuboidal and Columnar Epithelium
Transitional Epithelium
Glandular Epithelium

21. Stratified Epithelia Stratified Squamous Epithelium
Most common form in the body. Good for areas of high friction: Mouth, Hands, etc.
Stratified Transitional Epithelium
Only found in the Urinary system. Stretch and retract well.

22. Stratified Squamous Epithelium
A= stratified B= Squamous

23. Transitional Epithelium
A= transitional cells do not flatten, look similar to B

24. More Stratified Epithelia
Glandular Epithelium. Secrete
Make up the Endocrine and Exocrine Glands

25. Glandular Epithelium with goblet cells.

26. What are the types of Connective Tissue? (most common Tissue)
Bone
Cartilage
Dense Connective Tissue
Loose Connective Tissue
Areolar Tissue
Adipose Tissue

27. Connective Tissues Bone: Hard. Used for protection and support
Cartilage: Softer and more flexible than bone. Very few blood vessels. Repair is difficult.
Dense Connective Tissue: Tendons and Ligaments.

28. Bone
A= central canal B= lamella
C = osteocytes D= canaliculi

29. Hyaline Cartilage Not stretchy, resists compression.
Nose, Ears, Trachea, Spinal Disks & Joints
A= chondrocytes B= Matrix C= Lacunae

30. Dense Connective Tissue
A=fibroblasts B= Callageneous fibers

31. Connective Tissue Loose Connection Tissues
Areolar Tissue: Spongy. Soaks up fluid. Holds water and Salt. Protects and nourishes.
Adipose Tissue: Fat, Cushions, energy storage
Blood: Blood cells and Plasma

32. Aerolar Tissue
Allows for organ expansion. Also used for protection of muscles, blood vessels, and nerves.

33. Adipose Tissue
Cells store energy, insulate, and provide padding. Fat for use under skin, around, heart, and kidneys

34. Blood
Review of
stem cells
Platlets

35. How do stem cells help make blood?
Stem Cell Research. How is the procedure done?

36. What are the Three Muscle Tissues?
Skeletal Muscle: Voluntary movements
Cardiac Muscle: Heart, involuntary
Smooth Muscle: Involuntary.

37. Skeletal Muscle Cell

38. Cardiac Muscle

39. Smooth Muscle
Long thin nuclei and no striations

40. What are the Nervous Tissues?
Neurons or nerves- transport electrochemical signals.
Supporting cells: Insulate, feed, and protect Neurons.

41. Putting it all together
Tissue
Slides