3ESO Female Reproductive system - Contenido educativo
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Do you know that a female can give birth to about 35 babies in a lifetime?
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Or that the lifespan of an ova is from 12 to 14 hours after it is released from the ovary?
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Also, the female uterus can span up to 20 times during pregnancy.
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A lot of interesting things we're going to learn with the female reproductive system.
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today we are on point number four female reproductive system
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in the female reproductive system we have gonads that we explain that we're the part of the body
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where we generate the gametes the gametes are the sexual cells in the female the gonads are
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the ovaries, where are the gametes, are the ova, which the singular will be ovum. How are the
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ovaries? How do they look like? What are the functions? Basically, the function is the production
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of ova. Ovaries, we can say that they are made up of two layers, one which is external and one
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which is internal. In the external, we have the ovarian follicles. These ovarian follicles are
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all formed during the fetus stages, later only can mature, so when the girls are in their mother's womb
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the follicles are formed, nearly one million at the time of birth. After the process of oogenesis
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this ova will mature into a complete ova. In the internal layer we'll find the follicles when they
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are mature also the ovaries secrete sexual hormones which are going to be responsible
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for the female characteristics as we saw those are the estrogens and progesterone also are very
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important for the development of the baby in the reproductive track we have several tubes several
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tracts that are going to take the ovum into the uterus where the baby can be formed. So we have
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the fallopian tube, uterus, vagina, and vulva. Starting with the fallopian tubes, they are
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funnel-shaped. They are connected with the ovaries by the fimbri, which are finger-like projection.
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And the fallopian tubes are funnel-shaped and it's the place of fertilization. So when the
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sperm gets into the female reproductive system, it reaches the fallopian tubes, and there is
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where the egg is fertilized. These fallopian tubes are full of cells with cilia. Why? Because the
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ovum is not mobile, it cannot move. Therefore, it needs some push, some small help to get to the
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uterus. In the uterus, which is also called womb, we have three different layers. From the
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outer part to the inner part, we have the perimetrium, the myometrium, which is the muscular
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layer, and the endometrium, which is a mucosal line. This endometrium is the one that is going
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to be released with menstruation. The connection with uterus and vagina is the cervix. This is the
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lower part of the uterus and it's usually closed. It's only one or less
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centimeters open. It only opens when a baby is born. The function of
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the uterus is the gestation of the baby. Another part of the reproductive tract is
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the vagina. This is an elastic tube that connects the exterior with the uterus. In this vagina we
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have glands which are going to secrete some lubricating substances which are going to
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facilitate penetration. Also, thanks to this lubrification, the sperm can get more easily
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to the uterus. The hymen is a membrane made for protection, which breaks after the first
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sexual intercourse. This membrane is quite important, but is not compulsory to have it.
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Also, women can break it before the sexual intercourse by doing gymnastics or riding a bike.
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And the vagina, as we said, is the place where the sperm is placed
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And also is the place for the babies to pass to the outer world
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The vulva is the most visible part of the female reproductive system
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There are some skillfuls like the labia majora and the labia minora
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also there is an erectile tissue which is called clitoris that goes inside the female body about
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30 30 centimeters long in the vulva there are some glands which are the bartholin glands
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which are made for lubrification as you can see there are a lot of glands that lubrificate the
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area, so the sexual intercourse will be easier, won't hurt, and that spermatozoa
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can reach the ovum. And that's all for today, I hope you made a good drawing of
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the female reproductive system, a good drawing of the ovum, and next day we'll
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see the different stages of reproduction.
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Thanks for watching!
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- Idioma/s:
- Autor/es:
- Marta García Pérez
- Subido por:
- Marta G.
- Licencia:
- Reconocimiento - No comercial - Sin obra derivada
- Visualizaciones:
- 101
- Fecha:
- 13 de abril de 2021 - 22:14
- Visibilidad:
- Clave
- Centro:
- IES FORTUNY
- Duración:
- 06′ 38″
- Relación de aspecto:
- 1.78:1
- Resolución:
- 1920x1080 píxeles
- Tamaño:
- 427.95 MBytes
