Podcast
Questions and Answers
Which hormone surge triggers the release of the ovum during the ovulation phase?
Which hormone surge triggers the release of the ovum during the ovulation phase?
- Estrogen
- Progesterone
- LH (correct)
- FSH
What role does progesterone play in the ovarian cycle?
What role does progesterone play in the ovarian cycle?
- Stimulates follicle growth
- Triggers ovulation
- Promotes endometrial thickening (correct)
- Inhibits estrogen production
What happens to the corpus luteum if fertilization does not occur?
What happens to the corpus luteum if fertilization does not occur?
- It enhances FSH production.
- It transforms back into the follicle.
- It continues to produce estrogen indefinitely.
- It degenerates, leading to menstruation. (correct)
During which phase of the ovarian cycle does the largest increase in FSH and LH occur?
During which phase of the ovarian cycle does the largest increase in FSH and LH occur?
Which follicle stage is characterized as the most mature before ovulation?
Which follicle stage is characterized as the most mature before ovulation?
What is the primary hormone produced by the corpus luteum during the luteal phase?
What is the primary hormone produced by the corpus luteum during the luteal phase?
Which phase follows ovulation in the ovarian cycle?
Which phase follows ovulation in the ovarian cycle?
During the follicular phase, what is the effect of increased FSH and LH hormones?
During the follicular phase, what is the effect of increased FSH and LH hormones?
What occurs immediately after the mature follicle ruptures?
What occurs immediately after the mature follicle ruptures?
What is the purpose of estrogen produced during the ovarian cycle?
What is the purpose of estrogen produced during the ovarian cycle?
Flashcards
Ovulation
Ovulation
The release of the ovum from the mature follicle, triggered by a surge in LH.
Follicular Phase
Follicular Phase
The phase of the ovarian cycle where follicles grow, stimulated by FSH and LH, and produce estrogen.
Estrogen's role
Estrogen's role
Thickens the uterine lining and is also involved in fat deposit.
Luteal Phase
Luteal Phase
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Progesterone's role
Progesterone's role
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What triggers ovulation?
What triggers ovulation?
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Corpus Luteum
Corpus Luteum
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Endometrium
Endometrium
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Follicular Growth
Follicular Growth
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What happens if no fertilization occurs?
What happens if no fertilization occurs?
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Study Notes
Ovarian Cycle Phases
-
Follicular Phase (Pre-Ovulatory):
- FSH and LH stimulate follicle growth.
- Follicles produce estrogen.
- Estrogen rebuilds the functional layer of the endometrium.
-
Ovulation:
- Mature follicle ruptures, releasing the ovum.
- This is triggered by a surge in LH.
-
Luteal Phase (Post-Ovulatory):
- Ruptured follicle becomes the corpus luteum.
- Corpus luteum produces progesterone and estrogen.
- Progesterone and estrogen support the endometrium.
- If no fertilization occurs, the corpus luteum degenerates, leading to menstruation.
Ovarian Hormones
-
Estrogen:
- Promotes endometrial thickening.
- Contributes to adipose tissue deposition.
- Supports endometrial regeneration.
-
Progesterone:
- Prepares the uterine lining for implantation.
- Raises body temperature.
- Aids in maintaining early pregnancy (if fertilization occurs).
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