Answer:
Infants feature horizontally placed ribs compared to the downward-facing ones in adults,
Step-by-step explanation:
Infants feature horizontally placed ribs compared to the downward-facing ones in adults, which allow a significant increase in both the anteroposterior and lateral diameters of the thorax when the diaphragm descends5
Symmetry and shape – The normal chest is symmetric and, in the infant or young child, almost round. The transverse diameter increases with age.