Standard data on fetal development: A fetus at 32 weeks of gestation is close to maturity and is often called a premature infant. At this time, the weight of the fetus is about 1.7-1.8 kg, the head circumference is 29-31 cm, and the foot length is 7-8 cm. During this period, the fetus has developed most of the organs and systems needed for survival, including respiratory, liver, and digestive systems. At this time, the fetal brain is still developing and the nervous system is becoming increasingly mature. In addition, the fetal lungs are still developing and filled with fluid. this period