syndesmochorial placenta

The syndesmochorial placenta is a type of placenta found in ruminants and camels. It is an advancement over the epitheliochorial placenta, where the maternal tissues' epithelium is eroded to facilitate better communication between mother and fetus.1

During pregnancy, the placenta connects the developing mammal to its mother's uterus, facilitating the exchange of nutrients, oxygen, and waste products. In a syndesmochorial placenta, the uterine lining is partially eroded, allowing for a closer association between maternal and fetal tissues than in an epitheliochorial placenta. However, the maternal tissues may be fully or partially restored before pregnancy ends. The placenta itself is composed of chorionic villi, which are fingerlike projections that increase the surface area for exchange. This structure is crucial for the fetus's survival and growth, enabling vital physiological exchanges between mother and offspring.12