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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). - PowerPoint PPT Presentation
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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 - EmphysemaAlveoli (SSE) have broken open, enlarging the lumen (air space)
Problem: Less surface area for O2 and CO2
exchange.
Human Kidney- NormalSimple 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 - NormalSimple Squamous Epithelium – Provides smooth surface on interior of artery.
Lumen – inside of blood vessel
Basement membrane
Smooth Muscle Tissue
Connective Tissue
Artery - AtherosclerosisPlaque and cholesterol are stored under the SSE.
Problems: Narrows artery, leaves interior of artery rough and decrease elasticity of artery.