| A | B |
|---|
| glands that secrete chemicals through a duct | exocrine |
| gland that secretes chemicals called hormones into the blood; ductless | endocrine |
| flattened cells | squamous |
| cells that are taller than they are wide | columnar |
| a single layer of cells | simple |
| cells that are as wide as they are tall | cuboidal |
| 2 or more layers of cells | stratified |
| acellular layer between epithelial sheet and underlying connective tissue | basement membrane |
| found where diffusion and absorption are needed (lungs, capillaries) | simple squamous |
| cells that produce mucus; usually found near columnar cells | goblet cells |
| skin is this type of epithelial tissue | stratified squamous |
| found where stretching without leaking is important | stratified transitional |
| cells appear layered but are not | pseudostratified |
| attachments between epithelial cells that allow it to form tight sheets of cells | tight junctions & desmosomes |
| no blood vessels | avascular |
