Mucous glands are found in the

  1. capillaries
  2. trachea and bronchi
  3. red blood cells
  4. alveoli
Answer

B) trachea and bronchi

Glands in the submucosa of larger airways. AS & A Level Biology · Topic 9 Gas Exchange · 9.1 The gas exchange system

Biology MCQ · More A Level Biology: Gas exchange MCQs · Practise