Relating to the fetal circulatory system,which special characteristics allow the fetus to obtain sufficient oxygen from the maternal blood?
(Select all that apply).
A) Fetal hemoglobin (Hb) carries 20% to 30% more oxygen than maternal Hb.
B) Fetal Hb carries 40% to 50% more oxygen than maternal Hb.
C) Hb concentration is 50% higher than that of the mother.
D) Fetal heart rate is 110 to 160 beats per minute.
E) Fetal heart rate is 160 to 200 beats per minute.

Question

Quizplus · Accepted Answer

The following three special characteristics enable the fetus to obtain sufficient oxygen from maternal blood: (1)the fetal Hb carries 20% to 30% more oxygen; (2)the concentration is 50% higher than that of the mother; and (3)the fetal heart rate is 110 to 160 beats per minute,a cardiac output that is higher than that of an adult.

Relating to the Fetal Circulatory System,which Special Characteristics Allow the Fetus