They terminate at the alveolar sacs which contain the alveoli. Here inhaled O2 is exchanged for exhaled CO2 via the pulmonary veins (which transport de-oxygenated blood with CO2), to the pulmonary...
The tube that connects the throat and the bronchial tube is the esophagus.
The tube that connects to the bronchial tubes is actually the trachea:
9. What tube connects to the bronchial tubes?...