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Period: to
Prenatal Devlopment
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First Month
~A sperm and egg meet up in the fallopian tube
~through fertizilation, a bundle of cells called a blastocyst is formed
~This blastocyst is no bigger than a poppy seed
~The blastocyst devlopes into an embyro
~A primitive face begins to form, a jawline, holes for eyes, etc.
~By the end of the first month, the embryo is about 6-7 mm in length (About the size of a grain of rice) -
Second Month
~Facial features begin to develop further
~arms and legs begin to form as little nubs
~ear flaps take shape
~The spinal chord and brain begin to form also
~The nervous system and skeletal system take place
~The embryo is now a fetus thats about 2.54 cm long -
Third Month
~Arms and legs are fully formed, along with hands and feet
~toenails and teeth take form too
~cirrcualtory and urinary systems are formed and working
~The head gets bigger to accomdate the forming brain
~The fetus is now anywhere from 7.6-10 cm long and weighs as much as a singular ounce -
Month Four
~Fingers toes, eyelashes, eyebrows, and nails form
~Bones are denser
~The nervous system forms, as well as the braim continues to
~The fetus is about 6 inches long and weights four ounces -
Fifth Month
~Hair grows from baby's head and lanuguo (a fine light hair) coats the babies body
~Muscular system developes as the baby begins to move and kick to where the mother can feel
~The brain is fully connected to the nervous system and had began function
~The fetus is now 10 inches long -
Sixth Month
~The babies skin is reddish and wrinkled, and veins are showing
~Fingers and toes are visable now
~Finger and toe prints are visable
~The brain is sending signals to the babies body systems to work together more fluidly now
~The baby is a foot long and weighs two pounds -
Seventh Month
~fat deposits beign to form on the baby
~Baby has fully funtioning muscular system that allowes it to move around in the womb
~About 14 inches long, and weighs maybe three pounds.
~The brain is taking shape in forming in the shape we know -
Month Eight
~Maturing muscle movements and fat deposites work together
~the baby kicks more, and can see and hear
~the brain is rapidly developing
~the lungs are immature, but all other systems aren't and are fully functioning
~Baby is 18 inches long and weighs maybe five pounds -
Month Nine
~This is where development happens the quickest in any other stage
~lungs are now fully developed
~reflexes are coordianted, as it changes position for delivery
~The brain is fully formed but will continue develop throughout its early life
~its around 18-20 inches and around seven pounds
