Class 30_05 1 - Contenido educativo
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Okay, so I'll take it from where we were yesterday, okay?
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So, yesterday, I told you, we have three places we have to look at, okay?
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To coordinate the menstrual cycle.
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Place number one, the uterus, right?
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We started from there.
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We said, in the first around five days of the cycle, what we have is the menstruation.
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And during these days, the endometrius is being destroyed, okay?
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I told you yesterday that the endometrius is kind of like a nest, okay?
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That the body builds in case an embryo comes, okay?
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Which is something I will explain later in a moment.
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Then, after those first days, what happens?
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We're going to have a new endometrium being formed, okay?
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From that moment.
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In the beginning, just a little bit, and in the end, a lot more, okay?
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fine then we said in parallel at the same time in the ovary all the things are happening what
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is happening first of all during the first 14 days a follicle develops a mature ovum okay
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a follicle what is a follicle a follicle is a group of cells that is going to create the
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environment to make the opium mature okay good so when this follicle is ready and the opium is
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mature and it's ready to go let's say then we will have ovulation and when ovulation happens
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there is a big peak a big increase in this hormone okay the estrogens right good so the
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estrogens are going to be very high in ovulation. Then, after ovulation, the ovum gets out of
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the ovary, okay? And where does it go? We said it goes to the fallopian tube, okay?
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Fine. And what happens with the remainings of the follicle? It's going to turn into something
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called the luteus corpse. And this thing is important, why? Because it produces another
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hormone and this other hormone that produces is progesterone
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fine okay good then a progesterone what does it do what did we say it makes the endometrium
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wrong okay so why is important because of that because it makes the endometrium wrong okay
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Fine. And now, this is the new information, okay? What I said now, it was just like a review from the other, from what we said last day, okay? Yesterday, actually.
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What makes the ovary behave like this? Because there has to be something that is giving the orders to the ovary, okay?
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The ovary is giving orders to the uterus, but who is giving orders to the ovary?
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then there is something in our body that is coordinating everything and that is um that is
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going to happen in our brain in a special part called the hypothalamus this part receives orders
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from the brain but produces hormones okay it's a gland an endocrine gland that produces hormones
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yes we studied that in the previous unit okay it's an endocrine gland it receives orders from
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the brain but it produces hormones okay fine so which are the hormones that are going to direct
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the behavior of the ovary there are two hormones for that the hormones are called are called lh
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and the second one is called fsh
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Let's see, I'm going to put them the other way around.
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The hormones. These are hormones, okay?
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Let's see, wait a moment.
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Okay, so this hormone, first of all, it has a full name.
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It's a difficult name, but it helps.
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What is this name? It's called follicle stimulating hormone.
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Follicle stimulating hormone.
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And what is this name saying to us?
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that it is making the follicle develop, ¿vale?
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Se llama hormona folliculostimulante en español, ¿vale?
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Follicle stimulating, same in English, ¿vale?
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And what does it do?
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It stimulates the growth of the follicle,
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and it makes the ovum mature, okay?
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So this FSH hormone is going to direct this process.
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Good, and when the ovum leaves the follicle,
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then the brain, the hypothalamus
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will start producing the second
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the second one, which is called
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LH
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when FSH
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first FSH is produced
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when the ovum is released
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it will send the other one, the LH
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this second hormone is called
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luteinizing hormone
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hormona luteinizante in Spanish
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and what does it do?
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it makes the corpus luteus
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to progress
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and this way
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the LH
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is controlling
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this other part
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so the FSH
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controls the first part of the cycle
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mostly and the LH controls
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the second one
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this way
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if we look at this from the
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like the other way around
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we look at it from the top
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we start from the brain
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what do we have?
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the brain is producing hormones
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that control the ovary
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Which ones? First, it produces FSH and FSH makes the follicle mature, okay? Second, when the ovum is ready and goes to the fallopian tube, then the brain, the hypothalamus, sends a second hormone. Which one? The LH. And the LH makes the luteus corpus form, okay? And then this one is going to produce the second one, okay? The second hormone.
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So, in the ovary we have this situation, and thanks to this situation in the ovary, then we're going to have a second set of hormones that control the uterus, okay?
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So the follicle sends estrogens, and the luteus cord sends progesterone, okay?
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And estrogens work in many parts in the body, but progesterone, I want you to think that it's very important for the endometrium to grow, okay?
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This is the connection of everything.
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Anyway, this is what I didn't have time yesterday to say about this, okay?
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Any questions? I know this is a bit difficult, okay?
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But the idea here is that you think that an endocrine gland in the brain, located in our brain, is sending a hormone to the ovaries and the ovaries are sending other hormones to the uterus. And this way they are all coordinated. Okay? That would be like a summary of what we see.
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this one is sending these hormones and they are detected by the ovary okay and then the ovary
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sends these two hormones to the uterus okay and they all influence each other okay you have to
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read this carefully anyway okay from the book and this will be the menstrual cycle and now
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we're going to study what happens if there's actually fertilization okay so for that i will
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Don't go to the book.
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- Autor/es:
- Irene Andrade
- Subido por:
- Irene A.
- Licencia:
- Dominio público
- Visualizaciones:
- 45
- Fecha:
- 30 de mayo de 2024 - 18:26
- Visibilidad:
- Clave
- Centro:
- IES RAFAEL ALBERTI
- Duración:
- 08′ 05″
- Relación de aspecto:
- 16:9 Es el estándar usado por la televisión de alta definición y en varias pantallas, es ancho y normalmente se le suele llamar panorámico o widescreen, aunque todas las relaciones (a excepción de la 1:1) son widescreen. El ángulo de la diagonal es de 29,36°.
- Resolución:
- 1856x1046 píxeles
- Tamaño:
- 657.50 MBytes
