Syncytiotrophoblast only
Cytotrophoblast only
Syncytiotrophoblast and cytotrophoblast
Syncytiotrophoblast and fetal endothelium
Cytotrophoblast and fetal endothelium
Decidua basalis and secondary chorionic villi
Decidua capsularis and secondary chorionic villi
Decidua parietalis and tertiary chorionic villi
Decidua capsularis and villous chorion
Decidua basalis and villous chorion
Maternal blood
Fetal blood
Maternal and fetal blood
Amniotic fluid
Maternal blood and amniotic fluid
Insulin is highly teratogenic; discontinue treatment
Insulin does not cross the placental membrane
Insulin crosses the placental membrane but is degraded rapidly
Insulin will benefit her baby by increasing glucose metabolism
Insulin crosses the placental membrane but is not teratogenic
50 mL
500 mL
1000 mL
1500 mL
2000 mL
Allantois
Amnion
Yolk sac
Connecting stalk
Space connecting the intraembryonic and extraembryonic coeloms
One placenta, two amniotic sacs, one chorion
One placenta, two amniotic sacs, two chorions
Two placentas, two amniotic sacs, one chorion
Two placentas, two amniotic sacs, two chorions
One placenta, two amniotic sacs, two chorions
Hydatidiform mole
Vasa previa
Placenta previa
Placental abruption
Premature rupture of the amniochorionic membrane
Placenta previa
Vasa previa
Hydatidiform mole
Premature rupture of the amniochorionic membrane
Amniotic band syndrome
Ectoderm
Cytotrophoblast
Decidua basalis
Syncytiotrophoblast
Mesoderm
Estrone
Human placental lactogen (hPL)
Prolactin (PRL)
Progesterone
Estriol
First trimester
Second trimester
Third trimester
First trimester
Second trimester
Third trimester
Mitochondrial inheritance
X-linked recessive
Autosomal dominant
Autosomal recessive
Mitochondrial inheritance
X-linked recessive
Autosomal dominant
Autosomal recessive
Mitochondrial inheritance
X-linked recessive
Autosomal dominant
Autosomal recessive
Huntington disease
Cystic fibrosis
Duchenne muscular dystrophy
Leber hereditary optic neuropathy
Huntington disease
Cystic fibrosis
Duchenne muscular dystrophy
Leber hereditary optic neuropathy
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