Question

Drag the labels onto the diagram to identify the structures involved in respiratory epithelium function.

Answer 1

1. 1 box - mucous layer ( traps inhaled particles)

2. 2nd box- water saline layer ( allows cilia to push mucus towards pharynx)

3. 3rd box- facilitated diffusion of Cl-

4. 4th box- Anion channel ( allows cl- to enter the lumen)

5. 5th box - primary active transport of Na+ and K+

6. 6th box- secondary active transport of Cl-

7. 7th box- paracellular diffusion of water drawn by concentration gradient

8. 8th box- paarcelluular diffusion sodium drawn by electrochemical gradient

9. 9th box- ECF or extracellular fluid