相关实验视频
Updated: Jul 26, 2026

10:35
Stereotactic Radiosurgery for Gynecologic Cancer
Published on: April 17, 2012
概括
紧急避孕可以防止170万次意外怀孕. 关于口服避孕的教育是关键的,因为增加可用性不太可能,并且对于低风险怀孕的常规超声波不是经济有效的.
科学领域:
- 生殖健康 生殖健康
- 孕产妇和儿童的健康
- 医疗保健经济学 医疗保健经济学
背景情况:
- 意外怀孕是一个重大的公共卫生挑战.
- 目前的避孕方法包括紧急选择和常规方法.
- 常规产前查工具的成本效益需要评估.
研究的目的:
- 突出紧急避孕对减少意外怀孕的潜在影响.
- 倡导以教育为中心的口服避孕方法.
- 评估在低风险怀孕中常规超声波的经济可行性.
主要方法:
- 分析紧急避孕的潜在影响.
- 审查目前的避孕教育和可用性战略.
- 在低风险怀孕中对例行超声波的成本效益分析.
主要成果:
- 紧急避孕措施有可能避免170万例意外怀孕.
- 教育被强调为口服避孕的最佳策略,而不是限制措施.
- 在低风险怀孕中,常规超声波检查被发现不具有成本效益.
结论:
- 扩大紧急避孕的使用范围可以显著减少意外怀孕.
- 优先考虑口服避孕的全面教育对于生殖健康至关重要.
- 常规超声波不是低风险怀孕推的经济有效措施.
相关概念视频
Gonadal and Placental Hormones
The gonads, namely the testes in males and the ovaries in females, are pivotal in producing gonadal hormones that orchestrate the intricate processes of sexual development and reproduction.
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair growth — and...
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair growth — and...
Ovaries
The ovaries are roughly the size of almonds and measure approximately 2 to 3 centimeters in length. These paired structures are situated within the pelvic region and are anchored by the mesovarium—a peritoneal extension that also connects them to the wider structure of the broad ligament. The support system extends to the suspensory ligament, housing blood and lymphatic vessels. In addition, the ovarian ligament tethers the ovaries to the uterus.
On the ovarian surface, a layer of cuboidal...
On the ovarian surface, a layer of cuboidal...
Uterus and Cervix
The uterus, commonly called the womb, is a vital reproductive organ in females designed to provide a nurturing environment for the implantation and growth of an embryo. It is shaped like a hollow pear and positioned between the urinary bladder and the rectum. The uterus's structure allows it to support and protect a developing fetus throughout pregnancy.
The uterus is securely anchored within the pelvic cavity by paired broad ligaments on either side. It is further stabilized by three pairs of...
The uterus is securely anchored within the pelvic cavity by paired broad ligaments on either side. It is further stabilized by three pairs of...
Disorders of the Female Reproductive System
The female reproductive system can be affected by several disorders, including Premenstrual Syndrome (PMS), Premenstrual Dysphoric Disorder (PMDD), endometriosis, and various forms of cancer. PMS and PMDD are cyclical conditions that cause physical and emotional distress, with symptoms that include edema, mood swings, and food cravings. PMDD is a more severe form of PMS characterized by increased symptom severity that peaks during the luteal phase and tends to improve or resolve shortly after...
Overview of the Reproductive System
The reproductive system generates offspring, ensuring the survival of the species. In humans, the reproductive system is complex and involves a variety of organs and hormones that work together to ensure successful reproduction.
The gonads, or primary reproductive organs, produce gametes and sex hormones. In males, the testes produce spermatozoa and testosterone, which is responsible for developing secondary male sex characteristics, including a deeper voice, larger muscles, facial and body...
The gonads, or primary reproductive organs, produce gametes and sex hormones. In males, the testes produce spermatozoa and testosterone, which is responsible for developing secondary male sex characteristics, including a deeper voice, larger muscles, facial and body...
Disorders of the Male Reproductive System
Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra. Symptoms...
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra. Symptoms...

