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Gonadectomy
Gonadectomy, the removal of the gonads, may refer to: * Orchiectomy, removal of the testicles * Castration, removal of the use of the testicles, including by chemical means * Oophorectomy Oophorectomy (; from Greek , , 'egg-bearing' and , , 'a cutting out of'), historically also called ''ovariotomy'', is the surgical removal of an ovary or ovaries. The surgery is also called ovariectomy, but this term is mostly used in reference ...
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Gonad
A gonad, sex gland, or reproductive gland is a Heterocrine gland, mixed gland and sex organ that produces the gametes and sex hormones of an organism. Female reproductive cells are egg cells, and male reproductive cells are sperm. The male gonad, the testicle, produces sperm in the form of Spermatozoon, spermatozoa. The female gonad, the ovary, produces egg cells. Both of these gametes are haploid cells. Some hermaphroditic animals (and some humanssee Ovotesticular syndrome) have a type of gonad called an ovotestis. Evolution It is hard to find a common origin for gonads, but gonads most likely evolved independently several times. Regulation The gonads are controlled by luteinizing hormone (LH) and follicle-stimulating hormone (FSH), produced and secreted by gonadotropic cell, gonadotropes or gonadotrophins in the anterior pituitary gland. This secretion is regulated by gonadotropin-releasing hormone (GnRH) produced in the hypothalamus. Development The gonads develop f ...
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Orchiectomy
Orchiectomy (also named orchidectomy) is a surgery, surgical procedure in which one or both testicles are removed. The surgery can be performed for various reasons: *treatment for testicular cancer *as part of gender-affirming surgery for transgender women *as management for advanced prostate cancer *to remove damaged testes after testicular torsion. *after a trauma or complex rupture of the tunica albuginea. *as a treatment for post vasectomy pain syndrome. Less frequently, orchiectomy may be performed following a trauma, or due to wasting away of one or more testicles. Procedure Simple orchiectomy A simple orchiectomy is commonly performed as part of gender-affirming surgery for transgender women, or as palliative treatment for advanced cases of prostate cancer. A simple orchiectomy may also be required in the event of testicular torsion. For the procedure, the person lies flat on an operating table with the Human penis, penis taped against the abdomen. The nurse shaves a sm ...
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Castration
Castration is any action, surgery, surgical, chemical substance, chemical, or otherwise, by which a male loses use of the testicles: the male gonad. Surgical castration is bilateral orchiectomy (excision of both testicles), while chemical castration uses pharmaceutical drugs to deactivate the testes. Some forms of castration cause sterilization (medicine), sterilization (permanently preventing the castrated person or animal from reproduction, reproducing); it also greatly reduces the production of hormones, such as testosterone and estrogen. Surgical castration in animals is often called neutering. #Other animals, Castration of animals is intended to favor a desired development of the animal or of its habits, as an anaphrodisiac or to prevent overpopulation. The parallel of castration for female animals is spaying. Castration may also refer medically to oophorectomy in female humans and animals. The term ''castration'' may also be sometimes used to refer to emasculation where ...
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