Epithelial tissue lab
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Epithelial Tissue Lab. Examples of images and other useful information!. Human Skin - Normal. Lumen = Open Space Stratified Squamous Epithelium – Keratinized Basement Membrane Connective Tissue. Normal Skin vs. Skin Cancer (Squamous Cell Carcinoma).

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Epithelial Tissue Lab

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Epithelial Tissue Lab

Examples of images

and

other useful information!


Human Skin - Normal

Lumen = Open Space

Stratified Squamous Epithelium – Keratinized

Basement Membrane

Connective Tissue


Normal Skin vs. Skin Cancer (Squamous Cell Carcinoma)

Squamous cells are growing “down” into the connective tissue.

Problem = Inadequate blood supply to all epithelial tissue.


Human Lung - Alveoli

Simple Squamous Epithelial Tissue

Lumen = Air Space

Capillary = small blood vessel

Basement Membrane = to small to see!


Human Lung - Emphysema

Alveoli (SSE) have broken open, enlarging the lumen (air space)

Problem:Less surface area for O2 and CO2 exchange.


Human Kidney- Normal

Simple Cuboidal Epithelium – allows for filtration of water and salts.

Lumen – collecting duct for excess water and salts.

Basement Membrane

Connective Tissue (very little)


Kidney Carcinoma – Various Types

Irregular growth of epithelial cells or connective tissue.

Problem:Ducts are improperly formed, leading to poor filtration of water, waste and salts.


Human Aorta - Normal

Simple Squamous Epithelium – Provides smooth surface on interior of artery.

Lumen – inside of blood vessel

Basement membrane

Smooth Muscle Tissue

Connective Tissue


Artery - Atherosclerosis

Plaque and cholesterol are stored under the SSE.

Problems:Narrows artery, leaves interior of artery rough and decrease elasticity of artery.


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