A newborn with apgar of 8 and 9. Bottle feed started but newborn quickly vomits formula. Nasogastric tube is palced and resistance is felt after several centimeters. 1. What is pathology occuring here? 2. What developemental defect is responsible for this? 3. What condition in utero is this associated with?

The main function of the respiratory system is gas exchange (O2 and CO2). Ventilation is the movement of air through the respiratory tract into (inspiration) and out of (expiration) the respiratory zone (lungs).