Premature babies sometimes
tdis 6g6pc m+3,/;-3sm t(d krgm chgvsuffer from infant respiratory distress syndrome, which could be caused by a lack of sufficient surfactant in the pulmonary alveoli. The diagram belo
s c- mgm6h(rtmstkp dd3,cv6/ig +;g 3w shows two different alveoli structures.
1.Describe one feature of the surfactant.
2.Suggest a treatment for infant respiratory distress syndrome.
3.Draw a labelled diagram of the structures in an alveolus that are important for gas exchange.