What is the primary purpose of the amniotic fluid?

The primary purpose of amniotic fluid is to cushion and protect the fetus during pregnancy. Amniotic fluid surrounds the developing fetus in the amniotic sac, creating a stable environment that offers a buffer against external pressures and potential injuries. This cushioning effect is crucial, as it helps prevent trauma to the fetus from maternal movements or external forces.

Amniotic fluid also plays a role in allowing free movement, which is essential for musculoskeletal development. Although it can contribute to other processes like nutrient transfer and maintaining temperature, its primary function is focused on protection. The other options, while they may describe secondary roles of amniotic fluid or related functions, do not capture its primary purpose as effectively as its protective qualities do.