ch 3 Flashcards
epithelial tissue is found
covers organ surfaces
lines body cavity/ forms glands
protects, secretes, and absorbs
double sided
epithelial tissue made of
avascular, closely spaced cells
epithelial cell mitosis rate
high
basement membrane is made of
membrane of collagen fibers/ glycoproteins
basement membrane role
separates the EP form underlying connective tissue
classes of epithelium
simple, pseudo stratified columnar, stratified
cell shapes
squamous, cuboidal, columnar
ciliated cell
cilia on atypical surface, hair like
specialization of epithelial cell types
ciliated, with microvilli, with goblet cells, keratinized, non keratinized
microvilli
microvilli one apical surface,
wavelike, increases surface area/ more absorption
goblet cells
make mucus
kerantinized
layers of dead, flaky cells packed with keratin, waterproofed
nonkeranitzed
found in moist areas mouth ermm idkkkkkk, may be alive
connective tissue features
diverse, abundant, make up less space than matrix, varies in vascularity
connective tissue function
support, connects, and protects organs
connective tissue types (5)
fibrous, adipose tissue, cartilage, bone, blood
fibrous tissue contains
cells, ground substance, fibers
fibroblast
cell,Connects,
makes and secrets fibers
macrophages
cell, connects,
phagocytic
leukocytes
cell, connects
White blood cells, immune
adipocytes
cell, connects
fat storing cell
collagen fibers
connects,
strong and flexible NOT stretchy
reticular fibers
connects
provides a spongy framework
reticular
ground substance of fibrous CT
extracellular matrix, well hydrated
glycosaminoglycans
proteoglycans
adhesive glycans
elastic fibers
connects,
can stretch and recoil
basal surface
bottom edge or adjacent to the basement membrane
apical surface
faces the lumen (inner cavity of an organ)
where is simple Squamous epithlium found
external lining of small. intestines, alveoli of lungs
where is simple cuboidal epithelium found
kindey tubules, mammary glands
where are simple columnar epithelium with microvilli and goblet cells found
internal surface of small intestines
where is ciliated pseudostratified columnar epithelium with goblet cells found
trachea
where is keratinized stratified squamous epithelium cells found
skin
where are nonkeratinized stratified squamous epithelium cells found
mouth