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Lab Exercise Classification of Tissues: Epithelial Tissue. Tissue : a collection of similar cells working together Epithelial Tissue : cells that line the cavities and surfaces of organs & structures Pg. 56 of book and page 12-14 of packet. Classification of Epithelia.

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lab exercise classification of tissues epithelial tissue

Lab Exercise Classification of Tissues: Epithelial Tissue

Tissue: a collection of similar cells working together

Epithelial Tissue: cells that line the cavities and surfaces of organs & structures

Pg. 56 of book and page 12-14 of packet

classification of epithelia
Classification of Epithelia

1. Number of cell layers

lumen the open space above the apical surface of a structure
Lumen: The open space above the apical surface of a structure

Apical Surface

LUMEN

Epithelial Tissue

Connective Tissue

BasementMembrane

lumen the inner open space or cavity of a tubular organ as of a blood vessel or an intestine
Lumen: The inner open space or cavity of a tubular organ, as of a blood vessel or an intestine.

Apical Surface

Connective

Tissue

LUMEN

Epithelial

Tissue

Basement Membrane

slide6

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.

slide11

Apical

surface

slide14

Simple Columnar Epithelium

Apical

surface

Basement

membrane

Connective

Tissue

slide17

Apical

surface

Lumen

practice time

PRACTICE TIME!

Let’s see how you do!

simple cuboidal epithelium28

Simple Cuboidal Epithelium

Found where? Can you identify the lumen? Apical and basement membrane?

stratified squamous epithelium30

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?

transitional epithelium32

Transitional Epithelium

Where can you find this in the body?

simple squamous epithelium34

Simple Squamous Epithelium

Note it’s just ONE layer of flat shaped cells! Where in the body do you find this epithelium?

simple columnar epithelium38

Simple Columnar Epithelium

Can you see the goblet cell? What do they make?

pseudostratified ciliated columnar epithelium40

Pseudostratified Ciliated Columnar Epithelium

Do you see the cilia? Where in the body can you find this epithelium?

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