NUR 3480 antepartum -Questions and Answers
100% Correct
stages of fetal development
preembryonic, embryonic, fetal
Preembryonic period
fertilization through second week
what occurs in preembryonic period
preparation
sex determination
cellular multipl.
implantation
implantation occurs when
7-10 days after fertilization
embryonic period
end of 2nd week through 8th week
what is developed in embryonic period
-embyronic membrane
-amniotic fluid
-yolk sac
,-umbilical cord
-placenta
embryonic membrane
protect and support embryo as it grows
parts of embryonic membrane
chorion
amnion
amniotic fluid
cushions umbilical cord
-temp regulation
-growth and movement
-infection barrier
oligohydroaminos
low amniotic fluid
hydroamnios
too much fluid
yolk sac
forms primitive RBCs during first 6 weeks before liver
umbilical cord
, vein: carry oxygenated blood to baby
artery: (2) carry deoxygenated blood away
whartons jelly
prevents umbilical cord from folding over self and compressing blood vessels
placenta
interface between mom and baby -->
metabolic function of placenta
transfer glucose
respiratory function of placenta
transfer O2
immunologic function of placenta
regulate bacteria
circulation function of placenta
make sure blood never mixes
3 weeks
neural tube forms
-begin brain, heart, spinal cord
4 weeks
100% Correct
stages of fetal development
preembryonic, embryonic, fetal
Preembryonic period
fertilization through second week
what occurs in preembryonic period
preparation
sex determination
cellular multipl.
implantation
implantation occurs when
7-10 days after fertilization
embryonic period
end of 2nd week through 8th week
what is developed in embryonic period
-embyronic membrane
-amniotic fluid
-yolk sac
,-umbilical cord
-placenta
embryonic membrane
protect and support embryo as it grows
parts of embryonic membrane
chorion
amnion
amniotic fluid
cushions umbilical cord
-temp regulation
-growth and movement
-infection barrier
oligohydroaminos
low amniotic fluid
hydroamnios
too much fluid
yolk sac
forms primitive RBCs during first 6 weeks before liver
umbilical cord
, vein: carry oxygenated blood to baby
artery: (2) carry deoxygenated blood away
whartons jelly
prevents umbilical cord from folding over self and compressing blood vessels
placenta
interface between mom and baby -->
metabolic function of placenta
transfer glucose
respiratory function of placenta
transfer O2
immunologic function of placenta
regulate bacteria
circulation function of placenta
make sure blood never mixes
3 weeks
neural tube forms
-begin brain, heart, spinal cord
4 weeks
