How does increased relaxin during pregnancy affect the body?

Increased relaxin during pregnancy plays a significant role in promoting vasodilation, which is the widening of blood vessels. Relaxin is a hormone that aids in the physiological adaptations necessary for pregnancy, including the changes in the cardiovascular system. By enhancing vasodilation, relaxin helps to accommodate the increased blood volume and improved blood flow needed to support both the mother and the developing fetus. This vasodilatory effect can also contribute to lowering blood pressure, ensuring a more efficient delivery of oxygen and nutrients.

Vasodilation is crucial in helping the body adjust to the growing demands placed on it during pregnancy. The increased blood flow assists in placenta formation and function, which are vital for nutrient and waste exchange between the mother and the fetus. Therefore, the role of relaxin in promoting vasodilation is essential for a healthy pregnancy.