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