Spermatogenesis is the process by which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testicle. This process starts with...
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In vitro spermatogenesis is the process of creating male gametes (spermatozoa) outside of the body in a culture system. The process could be useful for...
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Spermatogenesis arrest is known as the interruption of germinal cells of specific cellular type, which elicits an altered spermatozoa formation. Spermatogenic...
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Spermatogenesis associated 13 is a protein that in humans is encoded by the SPATA13 gene. GRCm38: Ensembl release 89: ENSMUSG00000021990 – Ensembl, May...
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Oligospermia (redirect from Impaired spermatogenesis)
"Novel mutations in ubiquitin-specific protease 26 gene might cause spermatogenesis impairment and male infertility". Asian Journal of Andrology. 9 (6):...
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and then to the epididymis where newly created sperm cells mature (spermatogenesis). The sperm move into the vas deferens, and are eventually expelled...
61 KB (6,239 words) - 22:36, 17 October 2024
gymnosperms have motile sperm. Sperm cells form during the process known as spermatogenesis, which in amniotes (reptiles and mammals) takes place in the seminiferous...
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"nurse" cell found in human testes which contribute to the process of spermatogenesis (the production of sperm) as a structural component of the seminiferous...
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sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon ovum Fertilization External fertilization...
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accumulation of DNA damage and decreased DNA repair ability. During spermatogenesis in the testis, spontaneous new mutations arise and tend to accumulate...
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effects of exogenous testosterone replacement therapy, such as reduced spermatogenesis or infertility. Enclomiphene citrate is contraindicated in the groups...
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Germ cell (section Spermatogenesis)
(respectively oogenesis and spermatogenesis) is different for each species but the general stages are similar. Oogenesis and spermatogenesis have many features...
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gamete. The differences become apparent during the latter stages of spermatogenesis (for male gametes) and oogenesis (for female gametes)....After oogenetic...
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gonadal ridge. Spermatogenesis, the process for producing spermatozoa, takes place in the seminiferous tubules. During spermatogenesis, the DNA of spermatogenic...
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repeats is known as genetic anticipation. Instability is greater in spermatogenesis than oogenesis; maternally inherited alleles are usually of a similar...
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Spermiogenesis is the final stage of spermatogenesis, during which the spermatids develop into mature spermatozoa. At the beginning of the stage, the...
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scrotum, it regulates testicular temperature, thus aiding the process of spermatogenesis. In human males, the cremaster muscle is a thin layer of striated muscle...
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will stimulate spermatogenesis until the male dies. Increasing the hormones FSH and LH in males will not increase the rate of spermatogenesis. However, with...
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Androgen (section Spermatogenesis)
masculine secondary sexual characteristics as well as the activation of spermatogenesis and fertility and masculine behavioral changes such as increased sex...
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exogenous FSH suppression by testosterone. Chemotherapy may suppress spermatogenesis. Pretesticular azoospermia is seen in about 2% of azoospermia. Pretesticular...
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recombination) of a diploid primary oocyte to produce a haploid ovum. Spermatogenesis, the process of male gamete formation in animals, involves meiosis...
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onset of puberty is controlled by two major hormones: FSH initiates spermatogenesis and LH signals the release of testosterone, an androgen that exerts...
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sterilization. She conducted experiments on the relationship between heat and spermatogenesis. She found that exposing the testicles to high temperatures in hot...
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sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon ovum Fertilization External fertilization...
106 KB (12,406 words) - 19:01, 20 October 2024
Processes in the human biological life cycle: 1. maturity; 2. spermatogenesis and oogenesis; 3. vaginal intercourse with internal fertilization; 4. zygote;...
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determinants." If the underlying infertility is related to abnormalities in spermatogenesis, male offspring will have a higher risk for sperm abnormalities. In...
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Reproductive biology (section Spermatogenesis)
Gametogenesis is the formation of gametes, or reproductive cells. Spermatogenesis is the production of sperm cells in the testis. In mature testes primordial...
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endosperm, gymnosperm, perisperm, sperm, spermatid, spermatocyte, spermatogenesis, spermatogonium, spermatozoon, stenospermocarpy sphal- (ΣΦΑΛ) cause...
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KRT86 keratinization KRT86 intermediate filament organization KRT9 spermatogenesis KRT9 epidermis development KRT9 epithelial cell differentiation KRT9...
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process called spermatogenesis. In order to render a man infertile, a hormone-based male contraceptive method must stop spermatogenesis by interrupting...
21 KB (1,843 words) - 05:55, 16 August 2024