Which anatomical feature of newborns aids in effective chest compressions during resuscitation?

The anatomical feature of newborns that aids in effective chest compressions during resuscitation is the cartilaginous rib cage. In neonates, the rib cage is made up of softer cartilaginous structures rather than fully ossified bones. This flexibility allows for easier compression during resuscitation efforts because it enables the ribs to compress more effectively without causing fracture or injury. Additionally, the cartilaginous nature of the rib cage provides adequate recoil, which is crucial for the delivery of high-quality chest compressions.

This characteristic is particularly important in neonates since their chest wall is more compliant compared to that of older children and adults. During resuscitation, this compliance allows for adequate blood flow to be generated with less force, facilitating better outcomes for the newborn.