Question

All the answers please

9. During the finst 12 gestational weeks, you can not diferentiate male from female external genitalia A. true B. false 10. First trimester genital tissue that resembles the labia majora differentiates into the scrotum secondary to presence of a Y chromosome and fetal emission of male hormones A true B. false 11. Is it true that developing male and female gonads are initially located in the abdomern A true B. false 12. The greatest risk of fetal malformation occurs during organogenesis A true B. false 13. Prolactin is produced in the posterior pituitary gland and is responsible for milk production A. true 8. false 14. Oxytocin is produced by the neurosecretory cells of the anterior pituitary gland A. true B. false 15. Which of the following are responsible for milk production and release A. oxytocin B. the suckling of the infant C prolactin D. all of the above E. choice A and C 16. The umbilical cord contains A. 1 artery and 2 veins B. 1 artery and 1 vein C. 2 arteries and 1 vein D. 2 arteries and 2 veins E. none of the above 17. Amniocentesis is most effective before the 12th gestational week A. true 8. false 18. Elevated alpha-fetoprotein suggests an increased risk for anencephaly A. true B. false

Answer 1

9. True

The sex can be determined as the gonads can be distinguished. The male become more distinct between 8 and 12weeks were by the characteristics of the external genitalia will be differentiated.

10. True

Until the embryo development of 7 and week of gestation, both sees will have a trace of genital ridge that will eventually differentiate to become male or female sex organs were the testes in men are equivalent to labia and ovaries in the women.

11. True