The functions of amniotic fluid are as follows:
1. To protect the fetus from temperature fluctuations: Amniotic fluid helps maintain a stable temperature around the fetus, preventing sudden changes that could harm the developing baby.
2. To allow development of the lungs: The fetus "breathes in" and "swallows" amniotic fluid, which helps in the development of the lungs and respiratory system before birth.
3. To protect the fetus from trauma: The amniotic fluid acts as a cushion, providing protection to the fetus against external pressure or trauma.
Therefore, the correct functions of amniotic fluid from the options provided are to protect the fetus from temperature fluctuations, allow the development of the lungs, and protect the fetus from trauma.
