What is the primary function of the amniotic fluid?

• A. Nourish the fetus with nutrients.
• B. Insulate and protect the fetus.
• C. Help regulate maternal blood sugar.
• D. Provide a barrier to infections.

Answer: (B)

Amniotic fluid primarily cushions and protects the developing fetus. It creates a buoyant, shock-absorbing environment that reduces injury from maternal movement and external pressure. This space also allows the fetus to move freely, which supports normal musculoskeletal development and helps the lungs practice expanding and breathing movements. In addition, the fluid helps maintain a stable temperature around the fetus and reduces friction on delicate tissues. While it does contain nutrients and supports a relatively sterile environment, nourishment for the fetus mainly comes from the placenta, and maternal blood sugar is regulated by maternal and placental factors, not the amniotic fluid itself.