Unit 4 Tissues Flashcards
Tissues
similar cell types coming together to do a specific function or job
4 major types of tissues
Epithelial
connective
Muscular
Nervous
Classification of epithelial tissue: Simple
single
Classification of epithelial tissue: Stratified
two or more layers
Shape of cells: Squamous
flattened
Shape of cells: Cuboidal
cube shape
Shape of cells: columnar
tall, elongated
Functions of epithelial tissue
protects external/internal body surfaces
secretes/absorbs substances
divides to replace lost or damaged cells
avascular (lack blood supply)
Description: simple squamous
one layer
flattened
Description: stratified squamous
many layers
flattened at free surface
Description: simple cuboidal
one layer
cube shape
Description: stratified cuboidal
two or more layers
cube shape
Description: simple columnar
one layer
elongated
Description: stratified columnar
two or more layers
elongated
Description: pseudostratified columnar
one layer (*pseudo - false) tapered
Description: transitional
many layers
tissue stretches
Location: simple squamous
blood capillaries
alveoli
Location: stratified squamous
outer portion of skin/body orifices
Location: simple cuboidal
secreting glands ovaries lining of kidney tubules thyroid pancreas
Location: stratified cubodial
lining salivary glands
mammary gland ducts
Location: simple columnar
lining of digestive organs
lining uterine tubes
Location: stratified cubodial
back of throat
male urethra
Location: pseudostratified columnar
air passages
Location: transitional
bladder
ureters
urethra
