Development of Blood Vessels and Fetal Circulation

Definition

Development of blood vessels and fetal circulation is the process by which the cardiovascular system forms in a fetus, ensuring that oxygen and nutrients are efficiently delivered from the placenta to the growing tissues. This intricate network evolves through stages, culminating in a specialized circulatory pattern that supports fetal development until birth.

Related terms

Placenta: A unique organ that connects the developing fetus to the uterine wall, allowing nutrient uptake, waste elimination, and gas exchange through the mother's blood supply.

Umbilical Arteries and Vein: Two arteries carry deoxygenated blood and waste products from the fetus to the placenta, while one vein returns oxygenated blood and nutrients back to the fetus.

Foramen Ovale: An opening in the septum between the right and left atria of the fetal heart that allows blood to bypass non-functional lungs directly into systemic circulation