What provides the pressure that maintains the amniotic sac and forces the belly to stretch and grow during pregnancy?
Context The amniotic sac is a fluid-filled sac that surrounds the developing fetus during pregnancy. It provides a protective environment for the fetus and helps to maintain a constant temperature. The amniotic fluid is produced by the fetus's kidneys and is constantly being replaced. As the fetus grows, the amniotic sac expands to accommodate it. This expansion puts pressure on the mother's uterus, which causes the belly to stretch and grow. Simple Answer The amniotic fluid is made by the baby's kidneys and is constantly being replaced. As the baby grows, the amniotic fluid increases in volume, which puts pressure on the mother's uterus. This pressure causes the uterus to stretch and grow, which in turn causes the belly to stretch and grow. The ligaments, muscles, and skin of the belly are able to stretch and grow because they are made of elastic tissue. The pressure from the amniotic fluid helps to keep the amniotic sac in place and protects the baby from injury. Deta...