Epithelial Tissues II Flashcards
musosae layers
outer epithelium and CT directly underneath called the lamina propria
lamina propriae typically contain _______ because _______
a lot of immkune system cells and small blood vessels because they survey and extract foreign or ingested materials, cells and molecules from the environ and must efficiently transport and monitor
deeper CT tissue is typically called the
submucosa
epithelium of the skin
epidermis
directly underlying CT of the skin
dermis
deeper CT of the skin
hypodermis
deeper layers of the CT are directly continuous with the ______, but will often have different properties and house other tissues
lamina propria CT
many tubes and ducts emanate from all of these epithelial surfaces and can penetrate deep into the deep layers of the CT, leading to _______, including
- epithelial glands and organs
- large organs like the liver and the pancreas
the outer surface is _______ with the spaces of most of these tube and ducts, and all of the _______ surfaces are lined by epithelia
- directly contiguous
- tube duct
basic relationships of the epithelial tissues
- space (lumen)
- epithelia
- epithelial basal lamina
- CT
- other CT embedded tissues
Simple epithelia have
all cells arranged in a single layer or sheet
Stratified epithelia have
more than one layer of cells in which cells of the outer layers do not directly contact the basal lamina
Pseudostratified epithelia are
a special case where some cells do not reach the free surface (giving a stratified appearance), but all directly rest on the basal lamina.
Squamous cells are
flattened cells
cuboidal cells are
cube-like
