Cartilage is found where in the gaseous exchange system?
Trachea
Bronchioles
Alveoli
Bronchi
What is the function of goblet cells? (more than one answer)
Prevent airways from dehydration
To secrete mucus to trap bacteria and dust particles
To sweep mucus along
All airways contain elastic fibres?
What is the function of smooth muscle?
To remain relaxed always and keep the airways expanded at all times
To contract slowly and steadily over a long period of time, narrowing the airways
The function of cartilage is to provide a smooth surface in the airways
Where are goblet cells and ciliated epithelium found?
Trachea and bronchus
Trachea, bronchus and bronchioles
Where would you find smooth muscle in the gaseous exchange system?
