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Author Question: An example of the endocrine function of the placenta is: a. The production of human chorionic ... (Read 26 times)

luminitza

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on: Jun 28, 2018
An example of the endocrine function of the placenta is:
 
  a. The production of human chorionic gonadotropin (hCG) to stimulate uterine contractions
  b. Suppression of the corpus luteum to prevent spontaneous abortion
  c. The production of human placental lactogen (hPL) to suppress the mother's metabolism
  d. Stimulation of the corpus luteum to produce estrogen and progesterone

Question 2

From the third week to the eighth week of gestation, the product of conception (conceptus) is referred to as the:
 
  a. Zygote
  b. Embryo
  c. Fetus
  d. Infant


zoeyesther

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Reply #1 on: Jun 28, 2018
Answer to Question 1

ANS: D
The placenta produces hCG, which stimulates the corpus luteum to secrete the continuous supply of estrogen and progesterone needed to maintain pregnancy.

Answer to Question 2

ANS: B
The embryonic period of development extends from the third to the eighth week after conception. At fertilization, a zygote is formed from the nucleus of the sperm and the nucleus of the ovum. The fetal period begins with the ninth week after conception and extends until the infant is born at delivery.


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