During birth, an infant is normally stimulated to breathe by
A)CO₂ accumulating in the baby's blood.
B)an increased O₂ level in the baby's new environment.
C)prostaglandins.
D)surfactant.
E)spanking him/her.

Question

Quizplus · Accepted Answer

The accumulation of CO₂ in the baby's blood after the umbilical cord is cut stimulates the respiratory center in the brain, prompting the infant to take its first breath.

During Birth, an Infant Is Normally Stimulated to Breathe by