Ovarian Follicle Development and Hormone Regulation
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Questions and Answers

What happens to the follicles during the first 7 days of the menstrual cycle?

  • They start to grow (correct)
  • They stop growing and remain dormant
  • They release estrogen into the bloodstream
  • They begin to degenerate

    • What is the primary function of the estrogen secreted by the follicles?

  • To prepare the lining of the uterus for pregnancy (correct)
  • To regulate the menstrual cycle
  • To induce ovulation
  • To stimulate the growth of multiple follicles

    • What happens to the egg right before ovulation?

  • It is fertilized by sperm
  • It detaches from the follicle (correct)
  • It is released into the abdominal cavity
  • It is pushed into the fallopian tube

    • What causes the follicle to have a growth spurt on Day 14?

    <p>The release of luteinizing hormone</p> Signup and view all the answers

    How long does the egg live after ovulation if it is not fertilized?

    <p>12 to 24 hours</p> Signup and view all the answers

    What is the function of the cilia in the fallopian tube?

    <p>To move the egg to the entrance of the fallopian tube</p> Signup and view all the answers

    What is the main reason why the estrogen is secreted into the bloodstream?

    <p>To prepare the lining of the uterus for pregnancy</p> Signup and view all the answers

    What happens to the majority of the follicles around Day 7?

    <p>They start to degenerate and die</p> Signup and view all the answers

    Which hormone is released by the pituitary gland in response to estrogen?

    <p>Luteinizing hormone</p> Signup and view all the answers

    What is the role of the fallopian tube in the fertilization process?

    <p>It transports the egg from the ovary to the uterus</p> Signup and view all the answers

    What happens to the follicle after it releases the egg into the abdominal cavity?

    <p>It stops growing and degenerates</p> Signup and view all the answers

    What is the purpose of the chemicals released by the bulging follicle?

    <p>To move the fallopian tube closer to the follicle</p> Signup and view all the answers

    What happens to the sperm if the egg is not fertilized within 12-24 hours?

    <p>They die and are absorbed by the body</p> Signup and view all the answers

    Study Notes

    Ovarian Follicle Development

    • Ovarian follicles start growing in the first 7 days of the menstrual cycle.
    • These follicles secrete estrogen into the bloodstream to prepare the uterus lining for pregnancy.

    Follicle Maturation

    • By around day 7, all follicles stop growing and degenerate, except for one dominant follicle.
    • The dominant follicle continues to grow and nourish the egg inside.

    Estrogen and Luteinizing Hormone

    • On day 12, the dominant follicle secretes estrogen into the bloodstream.
    • When estrogen reaches the hypothalamus and pituitary gland, it triggers the release of luteinizing hormone from the anterior pituitary gland.

    Ovulation

    • On day 14, the luteinizing hormone causes the dominant follicle to have a growth spurt.
    • Right before ovulation, the egg detaches from the follicle.
    • The follicle releases chemicals that cause one of the fallopian tubes to move closer and surround the follicle.
    • The follicle then swells and bursts open, releasing the egg into the abdominal cavity.

    Fertilization

    • Cilia move the egg to the entrance of the fallopian tube.
    • Contraction in the fallopian tube pushes the egg towards the uterus.
    • The egg lives for 12 to 24 hours after ovulation. If not fertilized, it will die.

    Ovarian Follicle Development

    • Ovarian follicles start growing in the first 7 days of the menstrual cycle.
    • These follicles secrete estrogen into the bloodstream to prepare the uterus lining for pregnancy.

    Follicle Maturation

    • By around day 7, all follicles stop growing and degenerate, except for one dominant follicle.
    • The dominant follicle continues to grow and nourish the egg inside.

    Estrogen and Luteinizing Hormone

    • On day 12, the dominant follicle secretes estrogen into the bloodstream.
    • When estrogen reaches the hypothalamus and pituitary gland, it triggers the release of luteinizing hormone from the anterior pituitary gland.

    Ovulation

    • On day 14, the luteinizing hormone causes the dominant follicle to have a growth spurt.
    • Right before ovulation, the egg detaches from the follicle.
    • The follicle releases chemicals that cause one of the fallopian tubes to move closer and surround the follicle.
    • The follicle then swells and bursts open, releasing the egg into the abdominal cavity.

    Fertilization

    • Cilia move the egg to the entrance of the fallopian tube.
    • Contraction in the fallopian tube pushes the egg towards the uterus.
    • The egg lives for 12 to 24 hours after ovulation. If not fertilized, it will die.

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    Description

    Learn about the growth and development of ovarian follicles during the menstrual cycle, including the role of estrogen and luteinizing hormone.

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