What is the fetal response to acute hypoxia?

The fetal response to acute hypoxia involves increased blood flow to vital organs. When the fetus experiences a lack of oxygen, physiological mechanisms are activated to protect the most essential organs, primarily the brain and heart. This prioritization ensures that critical functions can be maintained despite the compromised oxygen supply.

During hypoxic conditions, the fetus diverts blood from less vital areas, such as the limbs and non-essential organs, to ensure that the central nervous system and heart receive adequate perfusion. This adaptive response helps sustain life and function during periods of reduced oxygen availability, playing a crucial role in fetal survival during challenging conditions.

In addition, the increase in blood flow to vital organs helps to maintain metabolic functions that are essential for the fetus's development and health, showcasing the body's resilience in adapting to adverse conditions.