| A | B | 
| glands that secrete chemicals through a duct that leads to the outside of the organ | exocrine | 
| gland that secretes chemicals called hormones into the blood; ductless | endocrine | 
| flattened cells | squamous | 
| extra credit codeword | histology | 
| 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 | 
| a number of layers of cells | stratified | 
| tissue under epithelial tissue that hold it in place & supply nutrients | 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 | 
| process that occurs as skin cells dry out and fill with a waxy substance | keratinization | 
| found in areas of stress and stretching; urinary bladder | stratified transitional | 
| cells appear layered but are not | pseudostratified | 
| projections of a columnar cell that increase its surface area or assist in moving substances along the cell surface | microvilli/cilia | 
| attachments between epithelial cells that allow it to form tight sheets of cells | gap junctions | 
| indicates a blood supply | vascular | 
| describes the blood supply of epithelial tissue | avascular |