The normal pulmonary vascular transition at birth

Although the normal pulmonary vascular transition at birth takes place quickly in the delivery room, it has its basis in the complex structural and biochemical development of the lung. We are only beginning to understand the stimuli that initiate and mediate the transition, as well as their interrelationships. Comprehension of normal structure and function is the foundation that will enable us to understand how this process is impaired in tile baby born with congenital diaphragmatic hernia.