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Related Concept Videos

Uterine Tubes01:16

Uterine Tubes

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The uterine or fallopian tubes function as the conduit through which oocytes travel from the ovaries to the uterus. Each fallopian tube measures approximately 10 to 13 cm long and is anatomically divided into the infundibulum, ampulla, isthmus, and interstitial part (or intramural segment). The infundibulum is characterized by its funnel shape and features extensions called fimbriae which reach towards the peritoneal cavity. These fimbriae play a critical role during ovulation as they extend...
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Development of the Sexual Organs in the Embryo and Fetus01:15

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Development of the reproductive organs in an embryo starts from a bipotential state. This means the early embryo can develop either male or female reproductive organs. The formation of these organs begins with the growth of gonadal ridges that arise from the intermediate mesoderm during the fifth week of development.
Near the gonadal ridges, two duct systems are present: the mesonephric ducts (Wolffian ducts) and paramesonephric ducts (Müllerian ducts). These ducts form the basis for the...
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Development of the Lymphatic System01:15

Development of the Lymphatic System

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The development of lymphatic tissues and vessels in embryonic life begins around the fifth week. These structures originate from the mesoderm layer, with lymph sacs emerging from developing veins.
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...
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Veins of the Abdomen and Pelvis01:18

Veins of the Abdomen and Pelvis

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The human body is a complex system of interconnected parts, and the circulatory system plays a crucial role in maintaining overall health. One key component of this system is the inferior vena cava, a large vein responsible for returning blood from the abdominopelvic viscera and abdominal walls to the heart.
The inferior vena cava is fed by numerous smaller veins. The lumbar veins, for instance, drain the posterior abdominal wall, emptying both directly into the inferior vena cava and into the...
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Sperm Transport01:15

Sperm Transport

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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.
The maturation phase occurs in the epididymis, where sperm...
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Development of Blood Vessels01:07

Development of Blood Vessels

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The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
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Related Experiment Video

Updated: Nov 11, 2025

An Efficient Method for Extracting Human Fallopian Tube Epithelia for Single-cell Analyses
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An Efficient Method for Extracting Human Fallopian Tube Epithelia for Single-cell Analyses

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Does the "Devil" originate from the fallopian tubes?

Khalid El Bairi1, Ouissam Al Jarroudi1, Cécile Le Page2

  • 1Department of Medical Oncology, Mohammed VI University Hospital, Oujda, Morocco; Faculty of Medicine and Pharmacy, Mohammed I(st) University, Oujda, Morocco.

Seminars in Cancer Biology
|March 26, 2021
PubMed
Summary
This summary is machine-generated.

Epithelial ovarian cancer (OC) originates from various sites, challenging the long-held belief of ovarian cyst cell origins. Understanding these revised origins is key for improved diagnosis and prevention strategies.

Keywords:
Fallopian tubeFimbriaOriginOvarian cancerSalpingo-oophorectomySurface ovarian epithelium

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Area of Science:

  • Gynecologic Oncology
  • Cancer Biology
  • Tumorigenesis

Background:

  • Epithelial ovarian cancer (OC) is a highly lethal gynecologic cancer, often diagnosed at advanced stages.
  • Platinum resistance and poor survival outcomes highlight OC's aggressive nature.
  • Previous theories focused on ovarian cyst cells, but OC's heterogeneity suggests other origins.

Purpose of the Study:

  • To review recent evidence on the revised origins of ovarian carcinoma histotypes.
  • To emphasize high-grade serous OC origins and their implications.
  • To explore how new origin insights can impact diagnostic and preventive approaches.

Main Methods:

  • Literature review of clinical cohorts and animal studies.
  • Analysis of recent evidence on ovarian cancer histogenesis.
  • Synthesis of findings on extra-ovarian origins for OC subtypes.

Main Results:

  • Evidence supports extra-ovarian origins for various OC histotypes.
  • The long-standing dogma of ovarian cyst cell origins is challenged.
  • Multiple origins and sites are proposed for different OC subtypes.

Conclusions:

  • Revised understanding of OC origins, especially high-grade serous OC, is crucial.
  • New insights into OC origins may lead to improved diagnostic and preventive strategies.
  • Further research into extra-ovarian origins is warranted for better patient outcomes.