lab 5 epithelial tissue Flashcards
lines open area, cells are densely packed, has two sides (top and bottom), supported by underlying connective tissue
epithelial tissue
top surface of epithelial tissue
apical surface
bottom surface of epithelial tissue
basal surface
has nerves
innervated
without vessels (no direct blood supply)
avascular
simple epithelial tissue
one layer
stratified epithelial tissue
multiple layers
flat cell shape
squamous
long thin cell shape
columnar
cube cell shape
cuboidal
single layer of flat cells
simple squamous epithelial tissue
function of simple squamous epithelial tissue
filter, diffuse, lubricate
single layer of cubed cells
simple cuboidal epithelial tissue
found in alveoli, blood vessels, kidney, endothelium, serous membranes
simple squamous epithelial tissue
found in kidney tubules, glands (salivary, mammary, thyroid, liver)
simple cuboidal epithelial tissue
function of simple cuboidal epithelial tissue and simple columnar epithelial tissue
secrete and absorb
empty space lined by epithelial tissue
lumen
single layer of tall, rectangular cells
simple columnar epithelial tissue
found in bronchi and uterus
simple columnar epithelial tissue
only looks multilayered, found in respiratory tract, nuclei are at different layers, has cilia and goblet cells
pseudostratified ciliated columnar epithelial tissue
found in respiratory tract (nasal cavity and bronchi) and male urethra
pseudostratified ciliated columnar epithelial tissue
function of pseudostratified columnar epithelial tissue
secretes and propels mucus
hairlike structure to increase surface area found on apical surface layer
cilia
epithelial cell which releases mucus
goblet cell
difference between simple and pseudostratified columnar epithelial tissue
placement of nucleus
provides protection and may be keratinized for added strength. names are assigned according to cell shape in apical layer
stratified epithelial tissue
multiple layers of epithelial tissue whose apical layer of cells have a flat shape
stratified squamous epithelial tissue
found on epidermis, abrasion protection, reduces water loss, prevents entry from pathogens
keratinized stratified squamous epithelial tissue
found in mouth, esophagus, anal canal, and vagina. protects from abrasion, prevents entry from pathogens
(nonkeratinized) stratified squamous epithelial tissue
apical cells are dead, packed with keratin, no nucleus
keratinized
found in bladder, urethra, ureter. multiple layers, apical cells are rounded, thicker when relaxed, thinner when stretched
transitional epithelial tissue
