The organ of the respiratory system located inside the lungs are known as the bronchi and bronchioles, which are the branching airways that deliver air to the alveoli (tiny air sacs).
The organ of the respiratory system that is located inside the lungs is called the bronchial tree. The bronchial tree comprises the bronchi, bronchioles, and alveoli, which are all found within the lungs. The bronchi are the main airways that branch off from the trachea and enter the lungs, dividing into smaller bronchioles. The bronchioles further divide into even smaller tubes, which eventually lead to clusters of tiny air sacs called alveoli. Within the alveoli, oxygen from inhaled air is exchanged for carbon dioxide, facilitating the process of respiration.
