Chapter 4- Prenatel Development Flashcards
The fetus’s growth during pregnancy
Prenatal development
The female cell or egg
The ovum
The organ In a females body that houses the fetus during pregnancy
Uterus
Fertilized egg
Zygote
First two weeks after conception
Zygote
Cells divide. 4 days reaches opening of uterus. Then implantation.
Development that occurs during zygote stage
Attaches(zygote) to thick lining of the uterus
Implantation
Size of zygote
Pinhead
3-8 weeks of pregnancy
Embryo stage
Starts to develop heart,lungs, bones muscles
Embryo stage (part one)
After 27 days conception neural tube closes brain takes over
Embryo stage (part two)
6th week, brain& spinal cord lead to first movements
Embryo stage (part 3)
8-9 week until birth
fetus stage of development during pregnancy
20 baby teeth buds, vocal cords, digestive & kidneys begin to function
Fetus
Baby starts to kick uterus wall in
3-4 month (fetus)
Capable living outside of mom in
7th month (fetus)
Gains weight rapidly to keep warm
Fetus stage