EPITHELIAL TISSUE
according to the cell arrangement: sheet (membranous), trabecular, reticular
according to the function: covering, secretory, absorptive, respiratory, sensory, myoepithelial
cells

Covering epithelium - classification
Simple
•Simple squamous
•Simple cuboidal
•Simple columnar
•Pseudostratified columnar
according to the number of cell layers and shape* of cells in the most superficial layer
Stratified
•Stratified squamous (nonkeratinized)
•Stratified squamous keratinized
•(Stratified cuboidal)
•Stratified columnar
•Transitional
*cell membrane is usually not seen very well;
  shape of nuclei helps us determine shape of cells
b.m.

Simple squamous epithelium



ren-corpusculum
Simple squamous and simple cuboidal epithelium – kidney (cortex)
glo
pt
dt
pt

Simple squamous and cuboidal epithelium – kidney (medulla)
epitely 2


Simple low columnar epithelium - kidney



Simple columnar epithelium – vesica fellea
lamina propria
lumen
tunica muscularis - smooth muscle tissue

Pseudostratified columnar epithelium with cilia - trachea
trachea


epitely 5
Stratified squamous epithelium - oesophagus


Stratified squamous epithelium - cornea



Stratified keratinized squamous epithelium - epidermis
epitely 6


epitely 8
Stratified columnar epithelium (palpebra – conjunctiva)
gll
m

Transitional epithelium - ureter
epitely 7 epitel přechodný


Transitional epithelium – calyx renalis



lamina basalis
lamina basalis
lamina fibroreticularis
Basement membrane (0,5 - 1 mm)

fused laminae basales of epithelial (podocyte) and endothelial cell
Glomerular basement membrane
endo
epi


Slides:
Simple squamous and cuboidal epithelium (30, 31. Ren)
Simple columnar epithelium (22. Vesica fellea)
Pseudostratified columnar epithelium with cilia (27. Trachea)
Stratified squamous (nonkeratinized) epithelium (11. Esophagus)
Stratified squamous keratinized epithelium (70. Skin from axilla)
Transitional epithelium (32. Renal calyx, 33. Ureter)
Stratified columnar epithelium (91. Palpebra)

Atlas EM:
Surface of epithelial cells – microvilli, brush border, striated border (16, 24-26, 62-63)
Surface of epithelial cells –  cilia (20, 21, 23, 60)
Lamina basalis (26, 27, 57), basal labyrinth (27)
Simple low columnar epithelium (18)
Alveolar epithelium (55, 61)
EPITHELIAL TISSUE