This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System (Histology), Subject name: Anatomy
[{'content': 'Clara cells are found in : \nSelect and explain. \nA. Trachea, B. Bronchioles, C. Alveoli, D. Oesophagus', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e. Bronchioles Different parts of the respiratory tracts have distinctive histological features :Clara cells are found in-bronchioles*Goblet cells are found in-Bronchi*Mucous gland are found in-Bronchi*Neuroendocrine cells-Bronchi*Mural cartilage-Bronchi*Part rich in secretory immuno globin-Bronchioles*Pores of Kahn-Alveoli*Contain macrophages in their lumens-Alveoli*Note that Squamous cells are never present in the normal lung,* when found they represent a metaplasia, (Squamous cell Ca is the most common type of lungs cancer even though the normal lungs contain no squamous mucosa).", 'role': 'assistant'}]