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Vídeo de contenido digital con subtítulos. (3ºESO, Biología, Ciclo menstrual)

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Subido el 24 de octubre de 2023 por Tania B.

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En este vídeo aparece la explicación del ciclo menstrual en inglés con subtítulos para facilitar al alumnado el entendimiento de este proceso.

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Okay guys, so now we are going to study the ovarian cycle and the uterine cycle 00:00:00
And as you can see in this picture, we need to study both cycles together 00:00:04
Because they are connected to each other 00:00:10
So that means that the things that happen during the ovarian cycle have an effect in the uterine cycle 00:00:13
both cycles last 28 days 00:00:21
And we are going to study one by one. So we are going to start with the ovarian cycle 00:00:24
As I said, it lasts 28 days more or less and 00:00:32
It's divided in three phases. The follicular phase, the ovulation and the luteal phase 00:00:36
So remember that the ovaries produce 00:00:44
The ova, that is what we have here, and also the female sex hormone, the estrogen and progesterone 00:00:48
Okay 00:00:57
So at the beginning of this cycle, during the follicular phase, this hormone that is the follicle-stimulating hormone 00:00:58
That is produced by the pituitary gland, stimulates the growth of the follicle in the ovaries 00:01:09
And produces estrogens, that we have them here. We can see the levels how they increase 00:01:19
Okay, so during the follicular phase 00:01:28
this hormone 00:01:31
Stimulates the growth of the follicle that inside we have the ovum and also produces 00:01:33
estrogens 00:01:42
Later we have the ovulation that is one day event 00:01:44
and 00:01:48
Consists of the release of an ovum 00:01:49
That we have here. So this ovum goes to the fallopian tubes 00:01:54
This ovum is released thanks to this hormone, the LH, that is the 00:02:03
luteinizing hormone that is produced by the 00:02:09
hypothesis 00:02:13
And this hormone is the one that triggers the ovulation 00:02:15
Okay, and then we pass to the luteal phase 00:02:22
So once the ovum is released 00:02:28
The follicle, that is what we have here, is 00:02:32
transformed into 00:02:36
a mass of cell that is what we call the corpus luteum 00:02:38
This corpus luteum 00:02:44
produces 00:02:46
progesterone 00:02:48
We can see the blue line here 00:02:50
And this hormone is involved in the uterine cycle too, the same as the estrogens 00:02:54
after 10 or 12 days 00:03:04
the corpus luteum 00:03:07
degenerates and stops secreting hormones and a new cycle starts 00:03:09
Subido por:
Tania B.
Licencia:
Reconocimiento
Visualizaciones:
12
Fecha:
24 de octubre de 2023 - 23:35
Visibilidad:
Clave
Centro:
CPR INF-PRI-SEC PADRE MANYANET
Duración:
03′ 19″
Relación de aspecto:
1.78:1
Resolución:
1280x720 píxeles
Tamaño:
50.08 MBytes

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