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Signs of Puberty01:27

Signs of Puberty

334
Puberty is a critical phase, typically beginning between the ages of 8 and 13 in girls and 9 and 14 in boys, though timing can vary based on genetics, environmental factors, and overall health. This period is characterized by the development of secondary sexual characteristics and the attainment of reproductive potential. Endocrine changes underpin puberty, with hormonal surges of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) instigated by Gonadotropin-Releasing Hormone (GnRH)...
334
Psychosexual Stages of Personality: Latency01:16

Psychosexual Stages of Personality: Latency

442
Following the phallic stage in Freud's theory of psychosexual development, children enter a phase called the latency period, which lasts from approximately six to twelve years of age. Unlike earlier stages, where sexual impulses played a central role, Freud believed these impulses are repressed during the latency period, becoming part of the unconscious. This stage is often described as a time of psychological calm after the turbulence of the phallic stage.
The latency period is not...
442
Menopause01:28

Menopause

156
Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
156
Hormonal Control of the Ovarian Cycle01:30

Hormonal Control of the Ovarian Cycle

476
The ovarian cycle is meticulously regulated by the hypothalamic-pituitary-gonadal axis. This cycle orchestrates the release of a mature oocyte, essential for reproduction.
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle.  At puberty, GnRH secretion increases in both frequency and...
476
Psychosexual Stages of Personality: Genital01:23

Psychosexual Stages of Personality: Genital

616
The genital stage is the final phase of Sigmund Freud's theory of psychosexual development, beginning at puberty, around age 12. During this stage, sexual energy shifts from self-focused interests to external individuals, marking the development of mature adult sexuality. Freud saw this phase as a time of sexual reawakening, with desires directed toward others outside the family. A healthy transition into this stage, according to Freud, signifies the emergence of two key aspects of adult...
616
Hormonal Regulation of the Menstrual Cycle01:22

Hormonal Regulation of the Menstrual Cycle

346
The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
346

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Updated: Jun 27, 2025

Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats
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正常的青春期正常的青春期.

Kanthi Bangalore Krishna1, Selma F Witchel1

  • 1Division of Pediatric Endocrinology and Diabetes, UPMC Childrens Hospital of Pittsburgh, Pittsburgh, PA, USA.

Endocrinology and metabolism clinics of North America
|April 27, 2024
PubMed
概括
此摘要是机器生成的。

青春期涉及阴道痛和上腺痛,影响成年人的健康. 了解这些青春期过程是澄清时间和晚期心血管,代谢和生殖结果之间的联系的关键.

关键词:
卵泡刺激激素是一种激素.戈纳达尔切奇是什么意思释放性激素释放性激素 (GONADOTROPIN) 是一种释放性激素.基斯佩丁-神经素B-丁诺芬神经元的神经元流化激素的作用是什么?青春期 青春期 青春期

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科学领域:

  • 内分泌学 在内分泌学.
  • 人体生理学 人体生理学
  • 生殖健康 生殖健康

背景情况:

  • 青春期的标志是生殖腺 (生殖腺成熟) 和上腺 (上腺成熟).
  • 淋巴痛涉及在童年静止后的下丘脑-垂体-淋巴腺轴的重新激活.
  • 上腺症意味着青春期的上腺成熟,导致阴毛和身体气味.

研究的目的:

  • 详细说明阴道痛和上腺痛的过程.
  • 阐明青春期开始时间与成年人健康结果之间的关系.
  • 为了确定影响发生性腺痛的因素.

主要方法:

  • 对影响青春期的神经内分泌,遗传,代谢和环境因素的审查.
  • 分析与生殖腺痛和上腺痛相关的荷尔蒙变化.
  • 青春期时间与成人健康标志物的相关性.

主要成果:

  • 淋巴痛涉及淋巴激素释放激素,黄素化激素和卵泡刺激激素的分泌量增加.
  • 上腺症是由阴毛,头毛和非质气味的发展表明的.
  • 诸如神经内分泌信号,遗传学,新陈代谢和环境等因素会影响淋巴痛的发生.

结论:

  • 了解性腺和上腺对于澄清与成人健康的联系至关重要.
  • 青春期的开始时间对心血管,代谢和生殖健康都有影响.
  • 对影响青春期开始的因素进行进一步的研究是有必要的.