Which of the following statements about the placenta is correct?
A) Oxygenated blood flows from the placenta to the fetus through the umbilical arteries.
B) Maternal and fetal blood mix in the placenta.
C) The placenta secretes hormones necessary for the continuation of pregnancy.
D) The placenta effectively screens nicotine, alcohol and most drugs, thus protecting the fetus.
Correct Answer:
Verified
Q13: Gestation typically lasts about
A) 40 weeks.
B) 42
Q14: Which extraembryonic membrane serves as the foundation
Q15: What is human chorionic gonadotropin, and what
Q16: What key developmental task initiates the beginning
Q17: Which statement about the amnion is accurate?
A)
Q19: Which extraembryonic membrane eventually forms the fetal
Q20: The mesoderm gives rise to
A) cardiac muscle.
B)
Q21: During lactation, the release of which hormone
Q22: Which of the following statements about the
Q23: The stage of development that begins the
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