(a(i))[1]
Identify the structures labelled A.
(a(ii))[1]
State what function the cells labelled B carry out.
(b)[2]
Name two tissues present in the wall of the bronchus that cannot be seen in Fig. 1.1.
(c)[1]
State the name of the other condition that leads to chronic obstructive pulmonary disease (COPD).
(d)[4]
Describe the appearance of a cross-section through the wall of a bronchus in a person with chronic bronchitis.
(e)[2]
Suggest why a person with chronic bronchitis is more likely than a healthy person to develop infectious diseases of the gas-exchange system.