Advanced Dental Admission Test (ADAT)

Kulchitsky cells are categorized as what type of cells found in the respiratory system?

1. Goblet cells

2. Neuroendocrine cells

3. Mesothelial cells

4. Clara cells

The correct answer is: Neuroendocrine cells

Kulchitsky cells are categorized as neuroendocrine cells in the respiratory system. These cells are part of the diffuse neuroendocrine system and are found primarily in the bronchial epithelium. They are involved in the regulation of airway functioning and can secrete various hormones and neuropeptides that play a role in lung development, regulation of airflow, and other physiological functions. The presence of Kulchitsky cells as neuroendocrine cells distinguishes them from other cell types such as goblet cells, which are responsible for mucus secretion; mesothelial cells, which line the pleural cavity; and Clara cells, which are found in the bronchioles and play a role in detoxification and secretion of surfactant. Thus, the classification of Kulchitsky cells as neuroendocrine emphasizes their unique role and functionality in the respiratory system.