*MINIMUM 400 WORDS* Based on the information in the case study, Animal Reproduct
ID: 303503 • Letter: #
Question
*MINIMUM 400 WORDS* Based on the information in the case study, Animal Reproduction, please answer the following questions. * Andrea is pregnant and is trying to calculate the time of conception.What is time of conception and how is it determined? * What are the functions of GnRH, FSH LH, estrogen and progesterone in pregnancy? * Andrea is having twins but the babies have two different fathers.Explain the difference between fraternal and identical twins. Which are these?How could the hahies have different fathers?Explanation / Answer
GnRH: produced by human trophoblast during pregnancy. performs the function of stimulating syncytiotrophoblast to produce human chorionic gonadotropin(hCG) which maintains the pregnancy after degeneration of corpus luteum.
FSH and LH: the levels of FSH and LH are low during pregnancy due to increased levels of estrogen and progesterone. They do not perform many functions during pregnancy, however, they are important hormones of the menstrual cycle.
Estrogen and progesterone: together they play an important role in the maintenance of pregnancy. Estrogen causes hypertrophy and hyperplasia of the uterine myometrium, thereby increasing the accommodation capacity and blood flow of the uterus. progesterone in conjunction with estrogen stimulates the growth of the uterus, causes decidual changes in the endometrium required for implantation and it inhibits myometrial contraction. In the breast, hypertrophy and proliferation of ducts are due to estrogen, while those of lobular system is due to the combined action of estrogen and progesterone.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.