Placenta, amniotic fluid and umbilical cord.
The lungs do not play a direct role in nourishing the developing embryo and fetus. The placenta, umbilical cord, and amniotic fluid play key roles in providing nutrition and oxygen to the developing baby during pregnancy.
amniotic sac :)
The protective sac around the embryo or fetus is the amniotic sac.
Amniotic membrane or amniotic sac, containing the embryo and amniotic fluid.
The envelope of thin tissue that surrounds the developing embryo is called the amniotic sac. It is filled with amniotic fluid, providing protection and cushioning for the developing fetus during pregnancy.
The protective sac surrounding the embryo is formed by the amniotic membrane and the amniotic fluid which together create the amniotic sac. This sac serves to cushion and protect the developing embryo during pregnancy.
The amniotic fluid inside the amniotic sac is designed to cushion the developing embryo and help maintain a constant temperature by providing a stable environment for the fetus to grow and develop in the womb.
A fluid-filled sac that surrounds an embryo is called an amniotic sac. This sac contains amniotic fluid, which provides protection and cushioning for the developing embryo.
The amniotic sac is the structure that protects and cushions the embryo during pregnancy. It is filled with amniotic fluid that helps absorb shocks and regulate temperature for the developing fetus.
The fluid-filled sac surrounding the developing embryo or fetus is called the amniotic sac. It is filled with amniotic fluid that protects and cushions the fetus, helping to regulate its temperature and provide room for movement.
The amniotic sac is the sac in which the fetus develops in amniotes. Its wall is the amnion, the inner of the two fetal membranes. It encloses the amniotic cavity and the embryo.