Fetal 1

What is the development of the fetus for 1-40 weeks?

It is so surprising that a fertilized egg is gradually upgraded and evolved into a small life. Let’s witness this change process together.

The aunt is here to prepare for ovulation

Eggs are excreted, waiting for sperm patronage.

Fertilized egg formation

The baby is as large as the poppy seed. The amniotic fluid surrounds and protects it, and the yolk sac produces blood nourish it.

The baby is as large as the sesame, and the three embryo forms, and the heart began to move.

The baby grows to half the size of the little pea, and the dark spots appear on the embryo, and will become nostrils, eyes, and ears in the future.Organ and tissue develop rapidly, with globe formation, and the heart beating at a rate of 100-140 times/min.

The length of the baby is 0.6-0.8 cm, and the weight is only heavy as the eyelashes.The baby’s eyes and mouth are obvious, and the ears look a bit.There are also small buds in the arms and legs.But the whole looks like a small tail.

The baby is as large as a raspberry, 1.6 cm long and 1g.Eye and ears are formed, and the eyes are wide on both sides of the head.The tip of the nose began to form, and the fingers and toes were separated.

The baby is about 2.3 cm long and the weight is about 2. It looks a bit like a person like a grape.The four cavities of the heart have been separated, and small teeth are formed under the gums, and gender organs begin to form.

The baby is 3 cm long and weighs about 4G. Each organ is full of functions, and the head accounts for half of the body.

The baby is 4.1 cm long and weighs about 7g. The toes and fingers have been separated. The small feet do not have a foot like a frog, and the bones start to harden.The blood began to circulate between the uterus, and the placenta began to play a completely played role.

The baby is 5 cm long and weighs about 14g.Fingers and toes will curl, and the facial expressions will change.Eyes and ears have been moved to the right position.

The baby is 7.6 cm long and weighs about 19.8g.The pancreas produces insulin, and the function of the placenta has been very complete, which can provide babies with sufficient oxygen and nutrients.

The baby is 9 cm long and weighs about 43g.The baby’s heart beating is twice as much as pregnant mothers. The body is faster than the head of the head, the neck is more obvious, and the chin is a little bit up.

The baby is 10 cm long and weighs about 71g.The bones continue to harden, and the legs are longer than the arm.Babies like to swallow amniotic fluid and suck their thumbs.The baby can feel the light, and the baby will be removed with a flashlight, and the baby will remove it.

The baby is 11.5 cm long and weighs about 100g.Equivalent to a big avocado.The baby likes to frown, squints, smiles, and has a richer expression.The degree of bone sclerosis is higher, and the fetal movement is more powerful.

The baby is 12.7 cm long and weighs about 100g.Listening starts to develop,

The baby is 12.7 cm long and weighs about 155-184g.The baby’s arm and legs can be fully moved, and you can feel the fetal movement like butterflies inciting wings.The nervous system is rapidly mature, and the brain development is in the last week of the first critical period.Hearing becomes sensitive and sensitive to light.

The baby is 15 cm long and weighs about 240g.Hearing, vision, taste, smell, and touch have all developed on the brain.The kidney began to make urine, began to produce tire dung, and the gums began to form teeth.

The baby is 16.5 cm long and weighs about 280g.Grow the eyebrows and hair.Effective swallowing ability will inhale amniotic fluid.The ear function is more powerful, and I hear more external voices.

The baby is 26.5 cm long and weighs about 330g.The digestive system is mature, the proportion of the legs has been coordinated, and the body surface forms brown sediments.

The baby is 28 cm long and weighs about 450g.The appearance is like a newborn, and the pancreatic and liver function develops steadily.

The baby is 29 cm long and weighs more than 450g.The lung blood vessels are developing, and the bones become hard.

The baby is 30 cm long and weighs 590g.The brain develops rapidly, and the lungs produce surface active substances.

The baby is 34 cm long and weighs 680g.The skin is smoother than before, the lungs continue to develop, and the nostrils begin to open.

The baby is 35.5 cm long and weighs 900g.The lungs continued to improve, the brain development was strengthened, the testicular and scrotum of boys decreased, and the baby’s eyes began to open.

The baby is 36.8 cm long and weighs more than 900g.Can open and close the eyes, and be able to sleep and wake up at the point.The baby still likes sucking his fingers.The brain and lungs continue to develop.

The baby is 37.5 cm long and weighs 1000g.The brain has billions of active neurons, and the baby will dream.In order to adapt to the autonomous breathing in the future, I started to learn hiccups.

The baby is 38 cm long and the weight is 1200g.The muscles and lungs have become more developed and mature. The head is larger than before. The subcutaneous fat begins to thicken, and the brain can control breathing and body temperature.It is more sensitive to sound, light and smell.

The baby is 39 cm long and weighs 1400g.The brain develops rapidly, with grooves and deresses.

The baby is 40.6 cm long and weighs 1500g.Being able to turn the head from one side to the other, the brain continues to develop, and you can use 5 senses.

The baby is 42 cm long and weighs 1700-2000g.The digestive system has developed completely, fat is more and more, and the sleep cycle is short, only 20-40 minutes.

The baby is 43 cm long and weighs 2000g.Can distinguish between day and night and hear everything around you.

The baby is 44.5 cm long and weighs 2500g.Fat continued to thicken, the lungs were still developing, and most babies began to set their fetal position.

The baby is 46 cm long and weighs 2500g.The kidney development is completed, the liver begins to produce waste, and the lungs are almost fully developed.

The baby is 47 cm long and weighs 2700g.Each system has been prepared for birth, and the blood circulation and immune system are developing well.Most babies began to move down.

The baby is 48 cm long and weighs 2800g.The adipose tissue continues to thicken, and the brain continues to develop.

The baby is 48 cm long and weighs 2800-3000g.The tire hair almost disappeared, and the subcutaneous fat continued to thicken.

The baby is 50 cm long and weighs 3000-3500g.The immune system is mature and prepare for birth.

There is basically no space in the uterus, and the fetus is born.The new second childboy mother, Career Hero, who used to be in the workplace, and the winner of Qingyun plan, won the original invitations of multiple platforms.Jia Youbao was sent to cultural exchanges in the United States.Share your childcare experience with thousands of mothers, follow me, and obtain more parenting knowledge.

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