fons: Read each statement or question below carefully and fill in the blank(s) with the correct answer. 1 Refers to the series of changes that occur in sexually mature, non-pregnant fermales which culminates into menses. 2. The secretos a hormone that stimulates the egg cells in the ovaries to grow _3. High level of progesterone produces a hormone associated with anxiety and stress. _4. It is the abitity to become fertile or to produce an offspring 5. A system that consists the brain and the spinal cord. 6. It consists of 10 billion neurons that control everything a person does, such as thoughts, movernents, memory, and sense

fons: Read each statement or question below carefully and fill in the blank(s) with the correct answer. 1 Refers to the series of changes that occur in sexually mature, non-pregnant fermales which culminates into menses. 2. The secretos a hormone that stimulates the egg cells in the ovaries to grow _3. High level of progesterone produces a hormone associated with anxiety and stress. _4. It is the abitity to become fertile or to produce an offspring 5. A system that consists the brain and the spinal cord. 6. It consists of 10 billion neurons that control everything a person does, such as thoughts, movernents, memory, and sense

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter43: Animal Reproduction And Development

Section: Chapter Questions

Problem 3VCQ: Figure 43.17 Which of the following statements about the menstrual cycle is false? Progesterone...

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Figure 43.15 Which of the following statements about hormone regulation of the female reproductive cycle is false? LH and FSH are produced in the pituitary, and estradiol and progesterone are produced in the ovaries. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken. Both progesterone and estradiol are produced by the follicles. Secretion of GnRH by the hypothalamus is inhibited by low levels of estradiol but stimulated by high levels of estradiol.
Premenstrual syndrome (PMS) can include mood swings, fluid retention (edema), anxiety, backache and joint pain, food cravings, and other symptoms. PMS usually develops after ovulation and lasts until just before or just after menstruation begins. Although the precise cause of PMS is unknown, it seems clearly related to the cyclic production of ovarian hormones. After reviewing Figure 16.3, suggest which hormonal changes may trigger PMS. Figure 16.3 Animated! Hormones govern the menstrual and ovarian cycles. A GnRH from the hypothalamus stimulates the anterior pituitary to secrete FSH and LH. B FSH and LH stimulate a follicle to grow, an oocyte to mature, and the ovaries to secrete progesterone and estrogens that stimulate the endometrium to rebuild. C A midcycle LH surge triggers ovulation and the formation of a corpus luteum. D Progesterone and some estrogens released by the corpus luteum maintain the endometrium, but if no pregnancy occurs, they stop being released and the corpus luteum breaks down. ( Cengage Learning)
Watch this video (http://openstaxcollege.org/l/ovulation) to observe ovulation and its initiation in response to the release of FSH and LH from the pituitary gland. What specialized structures help guide the oocyte from the ovary into the uterine tube?
Figure 43.17 Which of the following statements about the menstrual cycle is false? Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Menstruation occurs just after LH and FSH levels peak. Menstruation occurs after progesterone levels drop. Estrogen levels rise before ovulation, while progesterone levels rise after.
Watch this video (http://openstaxcollege.org/l/spermpath) to explore the structures of the male reproductive system and the path of sperm that starts in the testes and ends as the sperm leave the penis through the urethra. Where are sperm deposited after they leave the ejaculatory duct?
11. Summarize the organ and the effects of each of the reproductive hormones below. BASIC Effects/Function(s) of the Hormone Organ that Releases the Hormone Hormone Gonadotropin Releasing Hormone (GnRH) Luteinizing hormone (LH) Follicle stimulating hormones (FSH) nited States) NOV 20 Males & Females: Males: Females: Males: Females: zoom Focus ♫
b. Sperm cells remain in the epididymis for to zweeks mature they acquire the ability to the egg. to weeks. As they and
Identify 3 effects of Human Chorionic Gonadotrophin (HCG) in pregnancy. Select one or more: ☐a. This helps to ensure the endometrium is ready to receive the implantation of the embryo b. This is linked to the severity of morning sickness or hyperemesis gravidarum in pregnant women OC. Helps regulate oxytocin receptors in the myometrium O d. Promotes the maintenance of the corpus luteum at the beginning of pregnancy
Direction: Study the given series of events below. Arrange the sequence of the following events in chronological order by numbering each event from 1 to 5 according to the four phases of the menstrual cycle. Then, indicate on the space provided in which phase of the menstrual cycle does each event occur. Example answer: 3 Follicular Phase ___The body produces Human Chorionic Gonadotropin (HCG) if the mature egg is in order to maintain the thickness of the uterine lining for the fertilized to develop into an embryo. If not fertlized, the corpus luteum will be dissolved into the body and disappear and both hormone levels will fell. ______________________ ___The Mentrual cycle officially starts.______________ ___The pituitary gland releases Luteinizing Hormone as a result of rising levels of estrogen in order to stimulate the ovary to release a mature egg._________________
MATCHING TYPE: PLEASE CHOOSE THE CORRECT ANSWER FOR QUESTIONS 1-3 1. Compare the change in thickness of the uterine lining with change in progesterone amount for days 10-27. 2. Why is it logical for the level of FSH to fall greatly following ovulation? 3. What happens to the uterine lining between day 27 and day 1? What is this process called? A. prepares the endometrial lining of the uterus to allow the fertilized egg to implant and helps to maintain the endometrium throughout pregnancy. B. controls and prepares the lining of the uterus (the endometrium) for a potential during the first part of the cycle. C. prior to ovulation, FSH levels will peak, signaling the ovary to release an egg. Once ovulation has occurred, the levels will return to or dip slightly below the baseline to allows smaller follicles to degenerate. D. stimulates development of the maturing ovarian follicle and controls ovum production. E. increase in thickness of the endometrial lining, correspondingly. F. Day…
MATCHING TYPE: PLEASE CHOOSE THE CORRECT ANSWER FOR QUESTIONS 1-3 1. Compare the change in thickness of the uterine lining with change in progesterone amount for days 10-27. 2. Why is it logical for the level of FSH to fall greatly following ovulation? 3. What happens to the uterine lining between day 27 and day 1? What is this process called? A. prepares the endometrial lining of the uterus to allow the fertilized egg to implant and helps to maintain the endometrium throughout pregnancy. B. controls and prepares the lining of the uterus (the endometrium) for a potential during the first part of the cycle. C. prior to ovulation, FSH levels will peak, signaling the ovary to release an egg. Once ovulation has occurred, the levels will return to or dip slightly below the baseline to allows smaller follicles to degenerate. D. Day 13 E. stimulates development of the maturing ovarian follicle and controls ovum production. F. increase in thickness of the endometrial lining,…
. Describe the two different types of hermaphroditism