Biology A-Level
Airway structure and support
What Airway structure and support means in Biology A-Level, as defined for OCR.
Definition of Airway structure and support
Check what you remember
Read the wording for your board, then hide it and explain Airway structure and support in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Cartilage rings in the trachea and bronchi keep the airways open, while smooth muscle in bronchioles changes airway diameter to control airflow.
Topics that use Airway structure and support
- Exchange surfaces (OCR A-Level)
Related terms
- Adaptations of exchange surfaces
- Alveolar and capillary adaptations for diffusion
- Antagonistic muscle action
- Concentration gradients
- Correct use of the light microscope
- Counter-current gas exchange in gills
- large surface area
- Maintaining concentration gradients
Using Airway structure and support in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Biology questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Biology A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge