epithelial tissue
above, coverings or linings of the body, outer layer (skin, linings of organs)
what are the structural characteristics of epithelial tissue?
tightly packed and bounded together (cellularity)
many cells, little extracellular matrix
cells bound together by several types of intercellular junctions
attachment: basal surface attaches to basement membrane
What are the 2 layers of cells?
simple: 1 layer of cells
stratified: 2 or more cell layers, stronger
What are the 4 shapes of the cells?
squamous: flat
cuboidal: cube shape, each side roughly the same
columnar: column shape, elongated
transitional: shift between cuboidal and columnar