Question

QUESTION 7 Describe the levels of the four main female reproductive hormones at the onset of menses and throughout the cycle

Answer 1

1)progesterone

2)oestrogen

3)FSH (follicle stimulating hormone)

4)LH (luteinising hormone).

Level of harmon in cycle

1) progesterone-Progesterone levels are usually low during the first stage (follicular stage) of your menstrual cycle. Ovulation is called the luteal stage, when the egg is released into the fallopian tube. After ovulation, progesterone levels go up for about 5 days before going back down. If pregnancy happens, your progesterone levels will slowly rise from the ninth week of pregnancy until the 32nd week. The placenta will begin to make progesterone after 12 weeks to help your pregnancy stay healthy.

0.1 to 0.7 ng/mL in the follicular stage of the menstrual cycle. 2 to 25 ng/mL in the luteal stage of the menstrual cycle. 10 to 44 ng/mL during the first trimester of pregnancy. 19.5 to 82.5 ng/mL during the second trimester of pregnancy.

2)Estrogen- Estrogen levels rise and fall twice during the menstrual cycle. Estrogen levels rise during the mid-follicular phase and then drop precipitously after ovulation. This is followed by a secondary rise in estrogen levels during the mid-luteal phase with a decrease at the end of the menstrual cycle.

3) FSH-  In women, FSH helps control the menstrual cycle and stimulates the growth of eggs in the ovaries. FSH levels in women change throughout the menstrual cycle, with the highest levels happening just before an egg is released by the ovary. This is known as ovulation

4)LH- women in the follicular phase of the menstrual cycle: 1.9 to 12.5 IU/L. women at the peak of the menstrual cycle: 8.7 to 76.3 IU/L. women in the luteal phase of the menstrual cycle: 0.5 to 16.9 IU/L. pregnant women: less than 1.5 IU/L.