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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.
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Related Experiment Video

Updated: Feb 1, 2026

Manipulation and In Vitro Maturation of Xenopus laevis Oocytes, Followed by Intracytoplasmic Sperm Injection, to Study Embryonic Development
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In vitro fertilisation/intracytoplasmic sperm injection beyond 2020.

G E Crawford1,2, W L Ledger1,2

  • 1The Royal Hospital for Women, Randwick, NSW, Australia.

BJOG : an International Journal of Obstetrics and Gynaecology
|December 15, 2018
PubMed
Summary
This summary is machine-generated.

Artificial reproductive technology (ART), including in vitro fertilisation (IVF), has resulted in over 8 million births globally. Continued innovation enhances ART

Keywords:
Assisted conceptionbasic scienceinfertility

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Area of Science:

  • Reproductive medicine
  • Biotechnology
  • Medical ethics

Background:

  • Over 8 million babies born via assisted reproductive technology (ART) in 40 years.
  • Significant advancements in clinical and laboratory ART procedures.
  • ART applicability expanding to new patient groups, improving success rates.

Purpose of the Study:

  • To review innovations and impact of ART.
  • To address concerns regarding patient and offspring health.
  • To examine ethical challenges and global access to ART.

Main Methods:

  • Review of scientific literature and clinical advancements in ART.
  • Analysis of global trends in ART utilization and reproductive tourism.
  • Discussion of ethical considerations and access disparities.

Main Results:

  • ART innovations have increased complexity and broadened accessibility.
  • Concerns persist regarding the long-term health of patients and offspring.
  • Global ART utilization is projected to grow, with reproductive tourism increasing.
  • Significant disparities in ART access exist between wealthy and less wealthy nations.

Conclusions:

  • ART continues to evolve, offering new possibilities and challenges.
  • Ethical debates and health concerns surrounding ART require ongoing attention.
  • Expanding global access to ART, particularly in developing nations, remains a critical challenge.