In a preterm baby with respiratory distress syndrome which type of cell is deficient: (A) Type 1 alveolar cell, (B) Type 2 alveolar cell, (C) Alveolar capillary endothelial cells, (D) Bronchial mucosal epithelial cells
Answer is B. After bih Lung expands due inspiring air surfactant keeps the bug from collapsing defficieney of surfactant= Respiratory Distress Syndrome ref : guyton and hall 13th ed.