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FC: 3 Epithelium


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Covering epithelium
Epithelial cells that cover or line cavities and tubes
Glandular epithelium
Epithelial cells that form functional units of secretory glands
Simple squamous epithelium
Epithelial cells that allow passive transport of gases and fluids
Simple cuboidal epithelium
Epithelial cells that are involved in secretory, excretory and absorptive functions
Simple columnar epithelium
Epithelial cells that are involved in highly secretory, exceterory and absorptive functions
Stratified squamous epithelium
Epithelial cells that are involved in a protective function
Transitional epithelium
Epithelial cells that are involved in stretching and protective functions
Ciliated columnar epithelium
Epithelial cells that move mucus and other substances via cilia.
Cilia
An extension of the cytoskeleton that moves substances of the surface of cells
Keratin
A protein produced by the squamous cells as they mature and move through the layers to the surface
Stratified squamous keratinising epithelium
Epithelial cells that are involved in protection from abrasion because of keratin presence.
Microvilli
Very small (700nm) cellular membrane protrusions that increase the surface area of cells.
Sealed Protein strands
Intercellular spaces between epithelial cells 'stitch' together by their membranes
Desmosomes
Most common type of cell junction, a plaque attaches to the cytoskeleton and transmembrane proteins between the cell membranes
Hemidesmosomes
Half a desmosome, similar to desmosomes but the transmembrane proteins interact with the extracellular matrix
Gap junctions
Consist of pores in adjacent membranes which are aligned allowing small molecules to pass between cell
Dysplastic squamous cells
Undifferentiated epithelial cells, which have lost its function - its immature and not squamous
Basal Blister
The epidermis becomes separated from the dermis and the space fills with fluid.