specialised tissues Flashcards
epithelial organisation: explain the classification of epithelia (cell shape vs cell stratification)
what two physical characteristics of epithelial cells are related to their function
shape and layering
name three epithelial cell shape types
squamous, cuboidal, columnar
name the two examples of layering
simple (single), stratified (multiple)
keratinising characteristics
nuclei not visible in surface layers
non-keratinising characteristics
nuclei visible in surface layers
pseudostratified meaning
appear as multiple layers but surface cells remain in contact with basal lamina
simple squamous examples
alveoli, mesothelium, endothelium lining blood vessels
simple cuboidal example
endothelium lining kidney collecting duct
simple columnar examples
enterocytes (intestinal absorption and secretion)
stratified squamous keratinising example
epidermis
stratified squamous non-keratinising examples
linings of mouth, oesophagus, anus, cervix and vagina
pseudostratified examples
airway epothelium, various ducts in UT and RT, are often ciliated