The functions of amniotic fluid include: a. Restricting fetal ...

[mpobi80]

The functions of amniotic fluid include:
 
  a. Restricting fetal movement
  b. Maintaining a constant temperature for the fetus
  c. Preventing adherence of the amnion to the chorion
  d. Exchanging materials between the blood of the mother and the fetus

Question 2

Which sequence of events accurately describes circulation in the umbilical cord?
 
  a. Oxygenated blood flows from the fetus to the placenta through the umbilical vein.
  b. Deoxygenated blood flows from the fetus to the placenta through the umbilical arteries.
  c. Deoxygenated blood flows from the placenta to the fetus through the umbilical artery.
  d. Oxygenated blood flows from the placenta to the fetus through the umbilical artery.

[wtf444]

Answer to Question 1

ANS: B
The amniotic fluid maintains a constant temperature for the fetus. It also permits fetal movement and prevents adherence of the amnion to the fetus. Exchanges between the blood of the mother and the fetus occur through the placenta.

Answer to Question 2

ANS: B
From the fetus, deoxygenated blood flows through the two umbilical arteries to the placenta, where carbon dioxide and waste products are passed into the maternal blood for elimination. Oxygenated blood passes from the mother, through the placenta, into the umbilical vein, and to the fetus.

[mpobi80]

Excellent

[bulacsom]

Gracias!