Which adaptation of the maternal-fetal exchange of oxygen occurs in response to uterine contraction?
A) The maternal-fetal exchange of oxygen and waste products continues except when placental functions are reduced.
B) This maternal-fetal exchange increases as the blood pressure decreases.
C) It diminishes as the spiral arteries are compressed.
D) This exchange of oxygen and waste products is not significantly affected by contractions.

Question

Quizplus · Accepted Answer

Uterine contractions during labor tend to decrease circulation through the spiral electrodes and subsequent perfusion through the intervillous space.The maternal blood supply to the placenta gradually stops with contractions.The exchange of oxygen and waste products decreases.The exchange of oxygen and waste products is affected by contractions.

Which Adaptation of the Maternal-Fetal Exchange of Oxygen Occurs in Response