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The hormones FSH and LH are more active during the first half of the menstrual cycle. Based on the events of the calendar and the diagram on page 4, what role do these hormones likely serve?

The hormones FSH and LH are more active during the first half of the menstrual cycle. Based on the events of the calendar and the diagram on page 4, what role do these hormones likely serve?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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The hormones FSH and LH are more active during the first half of the menstrual cycle. Based on the events of the calendar and the diagram on page 4, what role do these hormones likely serve?

12 13 | 14 | 15 | 16 | 17 18 |19 Resource Page MENSTRUAL CYCLE Thickness of the Uterus 15 mm- Ovulation C FOLLICULAR PHASE LUTEAL PHASE 10 mm . 5 mm O m ovarian follicies corpus luteum 5 10 15 20 25 30 Menstrual cycle 213 4|516 26 27 28 Day 18-25: Uterine lining detatches and FSH LH estrogen progesterone menstruation begins Day I-7: Uterus lining begins to break down and menstruation occurs Day 18-25: f fertilisation has not occured, the corpus luteum fades away 00 Day 8-I1: Lining of womb starts to thickens in preparation for egg Day 12-17: Ovulation 10 11 12 /13 day 1 day 14 day 28 18 MENSTRUATION PROLIFERATIVE PHASE b . .. . SECRETORY PHASE Ovulation . Follicular phase Menstruation Luteral phase www
Transcribed Image Text:12 13 | 14 | 15 | 16 | 17 18 |19 Resource Page MENSTRUAL CYCLE Thickness of the Uterus 15 mm- Ovulation C FOLLICULAR PHASE LUTEAL PHASE 10 mm . 5 mm O m ovarian follicies corpus luteum 5 10 15 20 25 30 Menstrual cycle 213 4|516 26 27 28 Day 18-25: Uterine lining detatches and FSH LH estrogen progesterone menstruation begins Day I-7: Uterus lining begins to break down and menstruation occurs Day 18-25: f fertilisation has not occured, the corpus luteum fades away 00 Day 8-I1: Lining of womb starts to thickens in preparation for egg Day 12-17: Ovulation 10 11 12 /13 day 1 day 14 day 28 18 MENSTRUATION PROLIFERATIVE PHASE b . .. . SECRETORY PHASE Ovulation . Follicular phase Menstruation Luteral phase www
3. New egg is 1 Uterus lining and an egg are Uterus lining is thin after blood -ovary selected for shed during young egg maturation. and tissue have menstruation. been lost. 11 13 Egg within Uterus lining is beginning to thicken. Mature egg is released from ovary Fovary ovary is almost fully_mature. maturing egg the ovary. egg 15 17 19 21 Egg is in the oviduct. No Uterus lining continues to Uterus is very. thick - egg egg sperm cells are present. Egg is not fertilized. thicken. The egg falls out of the fallopian moves lower in the uterus. egg tube. 22 23 24 26 27 28 Uterus lining is at its thickest. Lining of the uterus and egg are ready to be shed. They are no longer needed. Go back to day 1. The egg moves even lower in egg the uterus. FIGURE 1. Day by day changes in the menstrual cycle - no fertilization of egg. To encourage collaboration, one calendar has been provided for each pair of students. Therefore, please work together. The cycle repeats itself.
Transcribed Image Text:3. New egg is 1 Uterus lining and an egg are Uterus lining is thin after blood -ovary selected for shed during young egg maturation. and tissue have menstruation. been lost. 11 13 Egg within Uterus lining is beginning to thicken. Mature egg is released from ovary Fovary ovary is almost fully_mature. maturing egg the ovary. egg 15 17 19 21 Egg is in the oviduct. No Uterus lining continues to Uterus is very. thick - egg egg sperm cells are present. Egg is not fertilized. thicken. The egg falls out of the fallopian moves lower in the uterus. egg tube. 22 23 24 26 27 28 Uterus lining is at its thickest. Lining of the uterus and egg are ready to be shed. They are no longer needed. Go back to day 1. The egg moves even lower in egg the uterus. FIGURE 1. Day by day changes in the menstrual cycle - no fertilization of egg. To encourage collaboration, one calendar has been provided for each pair of students. Therefore, please work together. The cycle repeats itself.
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