27.4 Fetal Period Wk 9 - 38 or Birth Flashcards
What connects the placenta to the fetus?
umbilical cord
notochord
chorion
allantois
What connects the placenta to the fetus?
umbilical cord
notochord
chorion
allantois
Which of the following vascular shunts connects the fetal left and right atria?
fossa ovalis
foramen ovale
ductus arteriosus
ductus venosus
Which of the following vascular shunts connects the fetal left and right atria?
fossa ovalis
foramen ovale
ductus arteriosus
ductus venosus
The placenta, a temporary organ that is shed after the infant is born, is the site of exchange of oxygen, nutrients, and waste between the mother and fetus.
True
False
The placenta, a temporary organ that is shed after the infant is born, is the site of exchange of oxygen, nutrients, and waste between the mother and fetus.
True
False
By what week of prenatal development will the placenta be established?
week 4
week 8
week 12
week 16
By what week of prenatal development will the placenta be established?
week 4
week 8
week 12
week 16
Approximately how many days after fertilization is a fetus considered full-term and ready to be born?
185 days
238 days
266 days
324 days
Approximately how many days after fertilization is a fetus considered full-term and ready to be born?
185 days
238 days
266 days
324 days
The placenta forms when the syncytiotrophoblast produces ________ that extend into the stratum functionalis of the endometrium.
The placenta forms when the syncytiotrophoblast produces chorionic villi that extend into the stratum functionalis of the endometrium.
The _________provides oxygen and nutrients to the conceptus and secretes ______and _____ to maintain the uterine lining.
The placenta provides oxygen and nutrients to the conceptus and secretes estrogen and progesterone to maintain the uterine lining.
