In early on pregnancy your baby grows dramatically, native a tiny dot to the size of a grape.
You are watching: Fetal development video week by week
Video note: contains medically accurate illustrations.
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Within a mainly of conception, your fertilized egg, known as a blastocyst, will certainly make its means to her uterus. The egg is around the size of a pen tip.
In days, the cell in the egg arrange themselves into groupings. The inner cell mass will come to be your baby. The external cells will end up being the amniotic sac and placenta.
The blastocyst then sheds its security casing in a process called hatching, and burrows right into the lush uterine wall.
Around mainly 5, your arising baby is the size of a sesame seed. The cells the once created the blastocyst"s inner cabinet mass begin organizing and also arranging, offering shape to the young embryo and forming primitive organs.
Your baby"s mind and spinal cord space visible through his translucent skin.
Right about this time, your baby"s circulatory system also forms and also his heart begins to beat.
Your infant looks an ext like a tiny tadpole than a human. He"s illustration nutrients and also oxygen through the newly formed placenta and umbilical cord.
By mainly 9, the embryonic tail is gone. Her baby"s looking an ext human every day, with protruding limbs and fingers, a identified nose, mouth, and also eyes, and tiny earlobes.
Your new resident is about the size of a grape and weighs a fraction of one ounce.It"s tough to think how rapidly one cell evolves in such a short time into the unmistakable human body of a baby.
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Mayo Clinic. 2014. Fetal development: The first trimester. Http://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in-depth/prenatal-care/art-20045302
MedlinePlus (ADAM). 2015. Fetal development. Https://www.nlm.nih.gov/medlineplus/ency/article/002398.htm
OWH. 2010. Step of pregnancy. U.S. Office on Women’s Health. Http://www.womenshealth.gov/pregnancy/you-are-pregnant/stages-of-pregnancy.html