Histology – Day one
Epithelial Tissue
Name:____________________________________________ Date:__________________ Block:______________
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Tissue: _______________________________________________________________________________________________
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Histology: _______________________________________________________________________________________________
4 Types of Tissues:
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
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__________________________________________________________________________
Epithelial Tissue
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“epithe” = __________________________________________________________________________
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Structure:
1. __________________________________________________________________________
2. __________________________________________________________________________
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Function:
1. __________________________________________________________________________
2. __________________________________________________________________________
3. __________________________________________________________________________
4. __________________________________________________________________________
Special Properties of Epithelial Tissues
1. Polarity
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Apical surface = _____________________________________________________(some with microvilli, cilia)
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Basal surface = ____________________________________________________________________________
2. Specialized contacts
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________________________________________________________
________________________________________________________
3. Supported by connective tissue
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________________________________________________________
4. No blood supply (avascular)
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________________________________________________________
________________________________________________________
5. Regeneration
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________________________________________________________________________________________________________
Classification
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Two names = __________________________________________ + ____________________________________________
 Cell Layers: ________________________________________________________________________________________
 Shapes: _____________________________________________________________________________________________
Simple Epithelial Tissue
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Overall Function: ________________________________________________________________________________________
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Very thin layer – _____________________________________ layered
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Fragile!
Simple squamous
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Function: ____________________________________________________________________________
o Thin layer
Found: ________________________________________________________________________________________________________
Simple Cubiodal
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Function: ___________________________________________________________________
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Found: ________________________________________________________________________________________________________
Simple Columnar
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Function: _______________________________________________________________________________
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Found: _______________________________________________________________________________
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Contains: _______________________________________________________________________________
Pseudostratified Columnar
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_______________________________________________________________________________________________________
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Function: _______________________________________________________________________
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Found: __________________________________________________________ – cilia propels mucus from lungs
Stratified Epithelial Tissue
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____________________________________________________
___________________________________________________
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Main function =
______________________________________________
Stratified Squamous
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Function: ___________________________________________________________________________________________________
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Found: _______________________________________________________________________________________________________
Stratified Cuboidal
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_______________________________________________________________________________
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Found: ___________________________________________________________________
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(sweat, mammary, esophoageal, salivary)
Stratified Columnar
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_______________________________________________________________________________
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Found: _______________________________________________________________________________
Transitional Epithelial Tissue
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_______________________________________________________________________________
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Found: _______________________________________________________________________________
 Bladder, ureter, urethra
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_______________________________________________________________________________
Glandular Epithelial

Gland: _______________________________________________________________________________
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2 Types:
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Endocrine gland: _____________________________________________________________________________________
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Example: Testes, ovaries, pituitary gland
Exocrine gland: ______________________________________________________________________________________
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Example: mucous, sweat, oil, saliva, bile
Exocrine Glands – Structure
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Simple duct structure: _____________________________________________________________________________________
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Compound duct structure: ________________________________________________________________________________
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2 shapes of ducts: __________________________________________________________________________________________
Exocrine Glands
 Merocrine gland: __________________________________________________________________________________________
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Example: sweat glands
 Apocrine gland: ____________________________________________________________________________________________
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Example: mammary glands
 Holocrine gland: ____________________________________________________________________________________________
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Example: sebaceous glands (blame them for acne!)
Goblet Cells
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________________________________________________________________________
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Found scattered among the
_______________________________________________________________________
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intestinal tract, respiratory tract, and conjunctiva in the
upper eyelid (rheum)