Naked ovary

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The egg cellor ovum plural ovais the female reproductive cell gamete in oogamous organisms. The egg cell is typically not capable of active movement, and it is much larger visible to the naked eye than the motile sperm cells. When egg and sperm fuse, a diploid cell the zygote is formed, which rapidly grows into a new organism.

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Lena Dunham has posted a photo on Instagram of her lying on a hospital bed after having surgery to remove her left ovary. The Girls creator has spoken frankly in the past about suffering from various health issues, having undergone a hysterectomy in in an effort to treat her severe endometriosis. In her recent post, she explains how the ovary had been removed as it had become surrounded by thickened scar tissue and was causing her immense discomfort.

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Infertile mice have given birth to healthy pups after having their fertility restored with ovary implants made with a 3D printer. Researchers created the synthetic ovaries by printing porous scaffolds from a gelatin ink and filling them with follicles, the tiny, fluid-holding sacs that contain immature egg cells. In tests on mice that had one ovary surgically removed, scientists found that the implants hooked up to the blood supply within a week and went on to release eggs naturally through the pores built into the gelatin structures.

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An ovarian follicle is a roughly spheroid cellular aggregation set found in the ovaries. It secretes hormones that influence stages of the menstrual cycle. Women begin puberty with aboutfollicles, [1] each with the potential to release an egg cell ovum at ovulation for fertilization. Ovarian follicles are the basic units of female reproductive biology.

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Researchers routinely use model organisms in their work to understand biological processes and diseases. Experimental work with animals dates to ancient Greece [1], and many of the key breakthroughs in biology research and medicine were made using model organisms. Interestingly, many of our favorite farm animals, or livestock species, are also model organisms, including the horse Equus caballuscattle Bos tauruschicken Gallus galluspig Sus scrofasheep Ovis ariesand goat Capra hircus.

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Crossing a microscope with a camera gives you a micrograph, a tiny photograph that allows artists and scientists to show the beauty inaccessible to the naked eye. Every year the Small World competition run by optics giant Nikon celebrates this hidden world. This year the winners range from an anglerfish ovary to the sex organs of plants via a rusted old coin.

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Lena Dunham had surgery to remove her left ovary on Tuesday. The year-old Girls alum took to Instagram to document her hospital stay and tell her fans about the procedure. I was so out of it that I thought I looked sensually moody a la Charlotte Rampling turns out it was more of a constipation vibe.

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The more scientific explanation of polycystic ovary syndrome PCOS is that it is a condition which affects how the ovaries work. Women with PCOS have a hormonal imbalance that affects their overall health, fertility, and appearance. We have an excess of androgen, which can cause excessive facial and body hair, acne, weight gain, thinning hair on the head, abnormal bloating, irregular periods, and difficulty getting pregnant. In the hope of normalising the symptoms women face with PCOS, I want to share the nitty-gritty struggles that some of us with the condition feel embarrassed to talk about.

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Identification of the stages of ovarian maturation of the Argentine hake Merluccius hubbsi Marini, Teleostei: Merlucciidae : advantages and disadvantages of the use of the macroscopic and microscopic scales. Renato M. Rossi-Wongtschowsk III.

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