Question 1
Which respiratory disease may spread to other parts of the body?
◦ pneumonia
◦ tuberculosis
◦ SARS
◦ emphysema
◦ asthma
Question 2
Which structure(s) of the respiratory system work with the immune system?
◦ cilia and mucus
◦ alveoli
◦ bronchioles
◦ the trachea
◦ bronchi and bronchioles