You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is All of the following cells are found in lung EXCEPT: and explain in detail?
Langerhans cells are antigen presenting cells located in the skin and migrate towards lymphoid tissue. In abnormal conditions like histiocytosis, there they invade the lung in large numbers. Kulchitsky cells are the neuro-endocrine cells found in the lining epithelium of lung and belong to the APUD system. Clara cells are the non-ciliated cuboidal/columnar cells in the wall of terminal / respiratory bronchioles. They function as stem cells for repair of epithelium and also secrete the surfactant lipoproteins like the type-II pneumocytes. Brush cells have microvilli at their surface and are innervated by nerve fibers, and function as receptor cells.