Of what is the normal umbilical cord comprised? a. 1 artery ...

[james]

Of what is the normal umbilical cord comprised?
 
  a. 1 artery carrying blood to the fetus and 1 vein carrying blood away from the fetus
  b. 1 artery carrying blood to the fetus and 2 veins carrying blood away from the fetus
  c. 2 arteries carrying blood away from the fetus and 1 vein carrying blood to the fetus
  d. 2 arteries carrying blood to the fetus and 2 veins carrying blood away from the fetus

Question 2

A couple just learned they are expecting their first child and are curious if they are having a boy or a girl. At what point of development can the couple first expect to see the sex of their child on ultrasound?
 
  a. 4 weeks' gestational age
  b. 6 weeks' gestational age
  c. 10 weeks' gestational age
  d. 16 weeks' gestational age

[jaaaaaaa]

Answer to Question 1

ANS: C
The umbilical cord is comprised of 2 arteries carrying blood away from the fetus and 1 vein carrying blood to the fetus.

Answer to Question 2

ANS: C
The fetal period begins at the ninth week, and by the tenth week the external genitalia are visible to ultrasound examination.