Epithelial tissue

6. a cell that is taller than it is wide.
7. the epithelium with a single layer of flat cells.
9. this epithelium seems stratified but it's not.
12. These short fibres cluster into a mesh-like network (reticulum = network) that covers and supports the structures bordering the connective tissue.
14. inelastic fibres of great tensile strength made up of collagen protein.
15. the ground substance and fibers between cells in a connective tissue.
16. the basal surface of epithelial cells lies on it.
18. it lacks blood vessels
19. the main function of epithelial tissue.

1. the epithelium with a single layer of cuboidal cells.
2. the epithelium that lines the bladder cavity. Its apical cells change their shape as the bladder fills with urine.
3. a group of cells of similar structure that perform a common function.
4. A passive process in which there is a net or greater movement of molecules or ions from a region of high concentration to a region of low concentration until equilibrium is reached.
5. fibres composed primarily of the protein elastin (rubber like protein) that allows them to function like rubber bands.
6. a cell that is as high as wide.
8. the surface of a cell that faces the lumen, which is the inner cavity of an organ or blood vessel, or that is exposed to the body exterior.
10. an epithelium with more layers of cells.
11. an epithelium with a single layer of cells.
13. the basic structural and functional unit of all organisms
17. a flat cell (it is wider than it is high).