The Amazing Placenta

Uteroplacental Circulation

• The placenta is responsible for allowing oxygen and nutrients to diffuse into fetal blood from maternal blood, serving as the critical interface between mother and fetus.

Microorganism Transfer

• A notable exception to the general rule of microorganisms crossing the placenta is toxoplasmosis, which can infect the fetus but does not typically cross the placental barrier like other pathogens.

Substances Passing Through the Placenta

• Nutrients, gases, and waste products can freely pass through the placenta, facilitating the exchange necessary for fetal development throughout pregnancy.

Storage Functions of the Placenta

• The placenta stores essential nutrients and hormones such as glucose, amino acids, and vitamins, and can release them into fetal circulation as required, ensuring the fetus receives adequate nourishment.

Role of the Umbilical Cord

• The umbilical cord functions as a lifeline for the fetus, containing blood vessels that transport oxygenated blood and nutrients from the placenta to the fetus and return deoxygenated blood and waste products from the fetus back to the placenta.

Test your knowledge about the placenta and its vital role in pregnancy. Learn about its formation, functions, and protective capabilities in this informative quiz.