Ovulation Flashcards
Follicular development is induced by the rise of what hormone?
FSH
The FSH induced follicular development is responsible for which process in the ovarian cycle?
Selection Window
What are the 4 types of ovarian follicles (in order of maturity)
Primordial –> Primary (Unilaminar–>Multilaminar) –> Secondary/Antral –> Graffian Follicle
In the Ovarian Cycle, this phase is marked by an estrogen-induced LH surge
Ovulation
What hormone is increased in the proliferative phase in the endometrial cycle?
Estradiol
Where is rhe site of FSH receptor expression?
Granulosa cells
The primary oocyte in the primary follicle is arrested at what phase?
A. Mitosis
B. Meiosis I
C. Prophase
D. Meiosis II
B. (Prophase I meiosis I)
What is the counterpart of menstrual period in the ovarian cycle?
Follicular Phase
In the secretory phase, what hormone starts to increase? This is secreted by the?
Progesterone- Corpus Luteun
The oocyte is on what stage during ovulation?
Secondary oocyte
What are the 3 stages in implantation?
Apposition
Adhesion
Invasion
In this stage, the blastocyst starts to adhere to the uterine wall
Apposition
The implantation takes how many days after fertilization?
6-7 days
What is the primary source of progesterone during the first few days in pregnancy? What structure secretes it
HCG-syncitiotrophoblast
What is the extraembryonic fetal membrane?
Chorion laeve
What hormone is responsible for the maintainance o amniotic fluid volume?
Decidual Prolactin
This attenuates the rate of decidual prolactin secretion
Arachidonic Acid
What hormones are responsible for the follocular dev’t? (growth factors)
GDF9 BMP-15
The antrum is filled with what fluid? The initial appearance of antrum is on what follicular stage
Liquor folliculi / Secondary Follicle
The Graafian Follicle contains what kind of oocyte? It is arrested at what stage in Meiosis?
Secondary oocyte / Metaphase II
What happens when the estrogen secretion is uncontrolled by progesterone?
Irregular menses ( si jonella at sheng ) hindi nyo naman mababasa kasi di kayo magbbrainscape. HE100x
What hormones are decreased during the pre-ovulatory period?
Estradiol and estrogen
What phase has a fixed amount of time? This is the basis of natural family planning
Luteal Phase (12-14days)
Menstruation typically last for how many days?
4-7 days