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1. Lab Exercise 5Classification of Tissues: Epithelial Tissue Tissue: a collection of similar cells working together
Epithelial Tissue: cells that line the cavities and surfaces of organs & structures
2. Classification of Epithelia 1. Number of cell layers
3. 2. Shape of the cells
4. Lumen: The open space above the apical surface of a structure
5. Lumen: The inner open space or cavity of a tubular organ, as of a blood vessel or an intestine.
6. I will use BOTH microscopes AND diagrams to test you on epithelial tissues. Make sure you look at the microscopes in lab and the diagrams in this presentation.
7. Simple Squamous EpitheliaAlveoli (air sacs) of Lungs
9. Simple Squamous Epithelium
10. Simple Cuboidal EpitheliaKidney Tubules
12. Simple Cuboidal Epithelium
13. Cross Section through the Small Intestine
14. Simple Columnar Epithelium
15. Stratified Squamous EpitheliaSkin
17. Stratified Squamous Epithelium
19. Pseudostratified Ciliated Columnar EpitheliaTrachea (cross section)
21. Pseudostratified Ciliated Columnar Epithelium
22. Transitional EpitheliaUrinary Bladder
24. Transitional Epithelium
25. PRACTICE TIME! Lets see how you do!
26. Name this tissue.
27. Simple Cuboidal Epithelium Found where? Can you identify the lumen? Apical and basement membrane?
28. Name this tissue
29. Stratified Squamous Epithelium Where in the body is this found? Can you find the lumen/apical surface/basement membrane? What is found under the basement membrane?
30. Name this tissue
31. Transitional Epithelium Where can you find this in the body?
32. Name this tissue
33. Simple Squamous Epithelium Note its just ONE layer of flat shaped cells! Where in the body do you find this epithelium?
34. Name this tissue.
35. Simple Squamous Epithelium (again!)
36. Name this tissue
37. Simple Columnar Epithelium The cells labeled G are goblet cells. What do they make?
38. Name this tissue.
39. Pseudostratified Ciliated Columnar Epithelium Do you see the cilia? Where in the body can you find this epithelium?
40. Name this tissue
41. Stratified Squamous Epithelia This is the KERATINZED type
Note the pointer on the basement membrane!
42. Epithelia Image Gallery
43. Simple Squamous Epithelia
44. Simple Squamous Epithelia
45. Simple Cuboidal Epithelia
46. Simple Cuboidal Epithelia
47. Simple Cuboidal Epithelia
48. Simple Columnar Epithelia: pointer is on the basement membrane
49. Simple Columnar Epithelia: pointer is on a goblet cell
50. Simple Columnar Epithelia
51. Simple Columnar Epithelia
52. Non-Keratinized Stratified Squamous Epithelia: pointer is on the basement membrane
53. Keratinized Stratified Squamous Epithelia: pointer is on the basement membrane
54. Stratified Squamous Epithelia
55. Stratified Squamous Epithelia
56. Pseudostratified Ciliated Columnar Epithelia: pointer is on the basement membrane
57. Pseudostratified Ciliated Columnar Epithelia
58. Pseudostratified Ciliated Columnar Epithelia
59. Pseudostratified Ciliated Columnar Epithelia
60. Transitional Epithelia: pointer is on the basement membrane
61. Transitional Epithelia: pointer is on the basement membrane
62. Transitional Epithelia
63. Transitional Epithelia