Physiological changes in fetal growth

Since fetal ninth week of pregnancy until full-term pregnancy ended. At this stage, from the early days of fetal death to a variety of organizations and the development of both the ability to adapt to life after leaving the mother. Tip from the original embryo only great at the time of birth, fetal about the burden of about 7. The first month (four weeks); fetal brain, eyes, mouth, the inner ear, digestive tract, arms and legs now taking shape. Fetal about a half centimeters. No. 12 months (eight weeks), 4 fetal face, elbows, knees, fingers and toes began to take shape, bone begins to develop. Children minor child has been dynamic, of about 3 cm and weighs about 1 gram. The first three months (12 weeks); time in intrauterine fetal will have Tijia, hand grasp, the old, microphone eyes and Cue. Teeth, lips and genitals began to develop. Fetal about nine centimeters, and weighs about 28 grams. B-Tip; biparietal diameter: 3.0 - 3.2 cm, humerus: 1.03 cm, femur: 1.56 cm, Bust: 6.43 cm, abdominal circumference: 7.4 cm, the amniotic fluid index: 7.87 cm. The first four months (16 weeks); 16 weeks pregnant when fetal hair, eyes, mascara, nail start growth, has been vocal and taste buds grow into. Fetal Then about 18 cm, weight of 113 grams. B-Note: biparietal diameter: 3.28 - 3.6 cm, humerus: 1.75 - 2.0 cm, femur: 2.03 - 2.23 cm, Bust: 8.43 cm, abdominal circumference: 9.40 cm, the amniotic fluid index: 10.5 cm. The first five months (20 weeks); five months pregnant when fetal movement started strong fracture, has grown fetal hair, sucking thumb, the part of the body organs are gradually growing. Then fetus about 25 cm, weight of 224 - 500克. B-Note: biparietal diameter: 4.47 - 5.0 cm, humerus: 2.57 - 2.97 cm femur: 3.01 - 3.47 cm, Bust: 11.71 - 12.7 cm, abdominal circumference: 13.41 - 15.2 cm, amniotic fluid index: 12.4 - 14.7 cm. The first six months (24 weeks); 24 weeks pregnant when the child's eyes can open and close, and the mother can be heard in the voices of fetal body has been a long 29 - 30 cm, weight 680 - 1000克. B-Tip; biparietal diameter: 5.73 - 6.07 cm, humerus: 3.72 - 4.3 cm, femur: 4.2 - 4.75 cm, Bust: 14.9 - 16.4 cm, abdominal circumference: 16.84 - 17.5 cm, amniotic fluid index: 14.3 - 15.9 cm. The first seven months (28 weeks); 28 weeks pregnant rapid growth of fetal body weight, weight gain than doubled about 24 weeks. Red skin, with a slightly wrinkled. Weighs about 1,150 grams - 1800 grams, body length 35 - 42cm. B-Tip; biparietal diameter: 6.64 - 7.01 cm, humerus: 4.39 cm, femur: 5.27 cm, Bust: 17.37 cm, abdominal circumference: 19.35 cm, the amniotic fluid index: 15.2 - 17 cm. The first eight months (32 weeks); 32 week fetus gradually grow up, bones and all organs of more mature strong, can be heard at this time fetus outside the mother's voice. Length 42 - 46 cm, weight of 2 kg - 2.7 kg. B-Tip; biparietal diameter: 7.79 - 8.18 cm, humerus: 5.54 cm, femur: 6.55 cm, Bust: 22.3 cm, abdominal circumference: 25.36 cm, the amniotic fluid index: 15-16 cm. The first nine months (36 weeks -40 weeks); fetal development has been nearly mature stage, with pink skin, subcutaneous fat fullness, fetal skin appearance filled with fat, decreased fetal head into the pelvis. To be prepared to do the birth. Then fetal body length 50 - 55 cm, weighs about 2.8 - 3.6 kg. B-Tip; biparietal diameter: 8.40 - 9.31 cm, humerus: 5.59 - 6.29 cm femur: 6.76 - 7.62 cm, Bust: 23.05 - 24.32 cm, abdominal circumference: 25.89 - 28.11 cm, amniotic fluid Index: 15.6 - 14.6 cm.