Ovulation Flashcards

1
Q

Follicular development is induced by the rise of what hormone?

A

FSH

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2
Q

The FSH induced follicular development is responsible for which process in the ovarian cycle?

A

Selection Window

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3
Q

What are the 4 types of ovarian follicles (in order of maturity)

A

Primordial –> Primary (Unilaminar–>Multilaminar) –> Secondary/Antral –> Graffian Follicle

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4
Q

In the Ovarian Cycle, this phase is marked by an estrogen-induced LH surge

A

Ovulation

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5
Q

What hormone is increased in the proliferative phase in the endometrial cycle?

A

Estradiol

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6
Q

Where is rhe site of FSH receptor expression?

A

Granulosa cells

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7
Q

The primary oocyte in the primary follicle is arrested at what phase?

A. Mitosis
B. Meiosis I
C. Prophase
D. Meiosis II

A

B. (Prophase I meiosis I)

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8
Q

What is the counterpart of menstrual period in the ovarian cycle?

A

Follicular Phase

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9
Q

In the secretory phase, what hormone starts to increase? This is secreted by the?

A

Progesterone- Corpus Luteun

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10
Q

The oocyte is on what stage during ovulation?

A

Secondary oocyte

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11
Q

What are the 3 stages in implantation?

A

Apposition
Adhesion
Invasion

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12
Q

In this stage, the blastocyst starts to adhere to the uterine wall

A

Apposition

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13
Q

The implantation takes how many days after fertilization?

A

6-7 days

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14
Q

What is the primary source of progesterone during the first few days in pregnancy? What structure secretes it

A

HCG-syncitiotrophoblast

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15
Q

What is the extraembryonic fetal membrane?

A

Chorion laeve

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16
Q

What hormone is responsible for the maintainance o amniotic fluid volume?

A

Decidual Prolactin

17
Q

This attenuates the rate of decidual prolactin secretion

A

Arachidonic Acid

18
Q

What hormones are responsible for the follocular dev’t? (growth factors)

A

GDF9 BMP-15

19
Q

The antrum is filled with what fluid? The initial appearance of antrum is on what follicular stage

A

Liquor folliculi / Secondary Follicle

20
Q

The Graafian Follicle contains what kind of oocyte? It is arrested at what stage in Meiosis?

A

Secondary oocyte / Metaphase II

21
Q

What happens when the estrogen secretion is uncontrolled by progesterone?

A

Irregular menses ( si jonella at sheng ) hindi nyo naman mababasa kasi di kayo magbbrainscape. HE100x

22
Q

What hormones are decreased during the pre-ovulatory period?

A

Estradiol and estrogen

23
Q

What phase has a fixed amount of time? This is the basis of natural family planning

A

Luteal Phase (12-14days)

24
Q

Menstruation typically last for how many days?

A

4-7 days

25
Q

What layer in te endometrium is sloughed off during menses?

A

Stratum functionale

26
Q

What is the counterpart of proliferative phase in the ovarian cycle?

A

Follicular Phase

27
Q

What important event in the endometrium occurs after/during the 5th day of menses?

A

Revasculariation

28
Q

What hormone, which is produced in the hypothalamus, is responsible for release of both LH and FSH and initiates the menstrual cycle?

A

GnRH

29
Q

This hormone is responsible for the steroidogenesis in the ovarian follicle and corpus luteum

A

FSH

30
Q

Which among the hormones maintain pregnancy?

A

Progesterone