The specific structure within the uterus that facilitates nutrient and gas exchange between the mother and the developing fetus.

गर्भनाल

English Usage: The circumvallate placenta can sometimes indicate complications during pregnancy.

Hindi Usage: संकुचित गर्भनाल कभी-कभी गर्भावस्था के दौरान जटिलताओं का संकेत दे सकता है।