Which of these changes occur in the fetus at the time of birth?
A) the lungs inflate
B) increased resistance to blood flow through the lungs occurs
C) the umbilical vein becomes the ductus venosus
D) the umbilical arteries become the ligamentum arteriosum
E) the foramen ovale becomes the round ligament
Correct Answer:
Verified
Q40: The thyroid gland begins to develop _
Q41: The developing embryo is at maximum risk
Q42: Failure of the neural tube to close
Q43: Fraternal twins
A)are also called monozygotic twins.
B)develop from
Q44: The gestation period usually lasts around _
Q46: A cleft lip results from the failure
Q47: During the first few days of development,the
Q48: Before birth the ductus arteriosus carries _
Q49: The stage with maximum cervical dilation until
Q50: Before birth the ductus venosus carries blood
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