Infants Typically Breathe in One Plane Compared with Adults,who Typically

Multiple Choice

Infants typically breathe in one plane compared with adults,who typically breathe in three planes.Reasons for this include all of the following except which statement?

A) The shape of their chest wall is conducive to diaphragmatic breathing
B) Arms are typically adducted, causing decreased expansion in the lateral plane
C) Infants have longer neck muscles, allowing superior movement of the thorax to assist with breathing.
D) The newborn chest wall is triangular in shape with the lower portion more easily expanded.