Prenatal Devt Flashcards
Fertilization to 2 weeks period
Germinal stage
Respond to sound
24 weeks
Baby is full term and ready to be born
38 weeks
Causes the uterine lining to shed
Progesterone
23 chromosomes
Egg cell and sperm cell
Zyogote enters a period of rapid cell division
After 36 hours
Embryo has limb buds
4 weeks
Ability to kick, swallow and sleep
16 weeks
Causes uterine lining to thicken
Estrogen
Water jacket or bag which the embryo is protected
Amniotic sac
Connect a baby in the womb of mother, opening of baby’s stomach to placenta
Umbilical cord
12 weeks to birth dvmpt
Fetal stage
Male seed
Sperm
2 hormones that prepare uterine wall to receive & nourish the ovum
Estrogen and progesterone
Fetus had developed lungs and eyes are open
28 weeks
Uterine lining
Endometrium
Layer in blastocyst that deleops into organs
Mesodorm
Layer in blastocyst that forms inner lining of organs
Endoderm
Baby’s filtering system, makes possible for the embryo to receive nutrients and oxygen, prevents from bacteria and viruses
Placenta
Embryo is most vulnerable
Embryonic stage
Layer in blastocyst that forms exoskeleton
Ectoderm
Kicks, turns, flexes body, swallows, make a fist, hiccup, suck thumb, can hear and feel
Fetal stage
Woman seed
Ovum
2-12 weeks of dvpmt
Embryonic stage
Duration of journey of embryo from fallopian tube to uterus
3-4 days
3 stages of prenatal period
Germinal
Emrbyonic
Fetal
Embryo becomes fetus
10 weeks
Heart beat begins
25th day of development
