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相关概念视频

Spermatogenesis01:22

Spermatogenesis

1.4K
Spermatogenesis is a complex process that involves the development of sperm cells from undifferentiated stem cells in the seminiferous tubules of the testes. The process is essential for the production of mature and functional sperm cells that are capable of fertilizing an egg.
The process of spermatogenesis can be divided into mitosis, meiosis, and spermiogenesis. During mitosis, the spermatogonia or stem cells divide to produce two identical daughter cells, type A and B spermatogonia. Type-A...
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Sperm Transport01:15

Sperm Transport

606
The journey of sperm from its origin to the point of ejaculation begins within the seminiferous tubules of the testis. Here, Sertoli cells produce fluid that propels non-motile sperm through a series of conduits, starting with the straight tubules leading to the rete testis. This interconnected network of tubules acts as the initial pathway for sperm, guiding them into the efferent ductules and then into the epididymis for maturation.
The maturation phase occurs in the epididymis, where sperm...
606
Testes: Histology01:27

Testes: Histology

653
A tough, fibrous membrane, the tunica albuginea, covers the testes, extending inward to form fibrous partitions or septa, dividing them into internal compartments called lobules. Each lobule has 1 to 3 tightly coiled seminiferous tubules where sperm production occurs. These tubules merge into a tubular network at the back of the testis, known as the rete testis. It connects to 15 to 20 efferent ductules, leading to the epididymis.
The spermatogenic cells, responsible for producing sperm, are...
653
Testosterone: Functions and Regulation01:26

Testosterone: Functions and Regulation

528
The intricate hormonal interplay essential for male reproductive health begins with the release of gonadotropin-releasing hormone (GnRH) by the hypothalamus. This hormone prompts the pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). LH targets the Leydig cells in the testes, stimulating them to produce and release testosterone. In concert with testosterone, FSH acts on the Sertoli cells within the seminiferous tubules to facilitate the release of...
528
Sperm Structure and Semen Composition01:22

Sperm Structure and Semen Composition

1.1K
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
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相关实验视频

Updated: May 30, 2025

Isolation of Sertoli Cells and Peritubular Cells from Rat Testes
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研究进展关于在精子发生过程中Sertoli细胞分泌的研究进展.

Yao Xiao1, Jingyi Zhang1, Yanxin Guan1

  • 1Sichuan Provincial Key Laboratory of Traditional Chinese Medicine Regulation of Metabolic Diseases, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.

Frontiers in endocrinology
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概括

塞尔托利细胞 (SCs) 对男性生育至关重要. 它们的分泌物支持生殖细胞的发育和精子的成熟,影响生殖健康和疾病.

关键词:
在AMH中,AMH就是AMH.塞尔托利细胞是Sertoli细胞.细胞因子 细胞因子胚胎细胞是发生在胚胎中的胚胎细胞.乳酸乳酸是什么意思 乳酸是什么意思精子的产生是精子的产生.

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Enrichment of Pachytene Spermatocytes and Spermatids from Mouse Testes Using Standard Laboratory Equipment
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相关实验视频

Last Updated: May 30, 2025

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Enrichment of Pachytene Spermatocytes and Spermatids from Mouse Testes Using Standard Laboratory Equipment
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A Seminiferous Tubule Squash Technique for the Cytological Analysis of Spermatogenesis Using the Mouse Model
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科学领域:

  • 生殖生物学 生殖生物学
  • 细胞生物学 细胞生物学
  • 内分泌学 在内分泌学.

背景情况:

  • 塞尔托利细胞 (SCs) 是哺乳动物丸中的体细胞,对生殖细胞发育至关重要.
  • SCs形成了血液丸屏障 (BTB),为生殖细胞提供免疫特权.
  • SC分泌功能对于丸发育和精子生成至关重要.

研究的目的:

  • 为了研究塞尔托利细胞的各种分泌物.
  • 概述精子生成过程中SC分泌的关键功能.
  • 阐明SC分泌对男性生育能力和生殖障碍的影响.

主要方法:

  • 对SC分泌产品的分析.
  • 与精子生成相关的功能测试.
  • 阴道分泌与男性生育能力参数的相关性.

主要成果:

  • 鉴定了SCs分泌的各种蛋白质和细胞因子.
  • 证明了SC分泌物在生殖细胞增殖和分化中的作用.
  • 建立了SC分泌功能障碍和受损的精子成熟之间的联系.

结论:

  • 阴道分泌对于成功的精子生成和男性生育能力至关重要.
  • SC分泌活动的失调有助于男性不孕症和生殖健康问题.
  • 了解SC分泌物提供了对临床生殖障碍的见解.