Tissue Flashcards
have a free surface exposed to the outside, to a body cavity or lining of an internal organ
Epithelial tissue
usually function for
secretion & absorption
cuboidal epithelium
may have microvilli or cilia on free surface
columnar epithelium
found in organs that can stretch
transitional epithelium
air sacs/alveoli (lungs),
capillaries, glomeruli (kidneys)
simple squamous epithelium
kidney tubules, ducts of thyroid gland & pancreas
simple cuboidal epithelium
single layer of tall cells;
may contain goblet cells that
secrete mucus &/or microvilli
simple columnal non-ciliated epithelium
lining of stomach & intestines
simple columnar non-ciliated epithelium
single layer of tall cells w/ cilia; may contain goblet cells
single columnar ciliated epithelium
lining of upper respiratory tract & uterine/fallopian tubes
single columnar ciliated epithelium
appears stratified (nuclei at various levels); may contain
goblet cells
Pseudostratified columnar epithelium
multiple layers of cells w/ flat, keratinized/“dead” surface cells
Stratified Squamous Keratinized epithelium
multiple layers of cells w/ flat, non-keratinized/“living” surface
cells
Stratified squamous non-keratinized epithelium
lining of “wet” surfaces (mouth, vagina)
stratified squamous non-keratinized epithelium
if a transitional epithelium is stretched it is
squamous
if transitional epithelium is not stretched it is
columnar
lining of urinary bladder & ureters
transitional epithelium
secrete various substances (enzymes, hormones, perspiration, milk, saliva, mucus, etc.)
glandular epithelium
have ducts (tubes) that take secretions away from the gland to the site of its functio
exocrine