An organ that develops in female mammals during pregnancy, lining the uterine wall and partially enveloping the fetus, to which it is attached by the umbilical cord.

A thin membrane that completely surrounds the embryo and contains a protective fluid in which the embryo is found.

Amniotic sac is filled with

The placenta is essential to the embryo for

The picture represents one stage during the human developing process. A function of structure A is to

Which association of structure and function is incorrect?

The amnion surrounds the embryo and bathes it in a protective fluid.

The developing embryo is fed by its mother’s blood through a tissue called the

The developing embryo is connected to the placenta by

What structure protects and cushions the fetus throughout its prenatal development?

The umbilical cord connects the baby to placenta.