Apedia

A-Level Biology OCR A

Air Structure Nasal Temp Humidity Dust Surfaces Describe

Front Describe the structure of the nasal cavity & explain how its structure makes it adapted for its function
Back Nasal cavity:
  • Main function: allow air to enter lungs at a similar temp and humidity to the air there & prevent dust particles/pathogens from entering
  • Large SA with good blood supply, warms air to body temp to help maintain it
  • Hairy lining that secretes mucus to trap dust and bacteria protecting lung tissue 
  • Moist surfaces increase humidity of incoming air reducing evaporation from exchange surfaces

Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.

Next card: Trachea structure cartilage describe explain makes adapted function

Up to card list: A-Level Biology OCR A