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Related Concept Videos

Development of the Sexual Organs in the Embryo and Fetus01:15

Development of the Sexual Organs in the Embryo and Fetus

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 male...
The Y Chromosome Determines Maleness02:19

The Y Chromosome Determines Maleness

The Y chromosome is a sex chromosome found in several vertebrates and mammals, including humans. In addition to 22 pairs of autosomes, the human males have one X chromosome and one Y chromosome. In these organisms, the presence or absence of the Y chromosome determines the development of male traits.
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size. Today,...
X-linked Traits01:19

X-linked Traits

In most mammalian species, females have two X sex chromosomes and males have an X and Y. As a result, mutations on the X chromosome in females may be masked by the presence of a normal allele on the second X. In contrast, a mutation on the X chromosome in males more often causes observable biological defects, as there is no normal X to compensate. Trait variations arising from mutations on the X chromosome are called “X-linked”.
Nondisjunction01:21

Nondisjunction

Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate correctly and move to the opposite poles of the cells. This produces daughter cells with abnormal chromosome numbers.  Nondisjunction is common during anaphase I or anaphase II of meiosis.  Mutations in synaptonemal complex proteins that attach homologous chromosomes increase the chances of nondisjunction in anaphase I of meiosis I. In contrast, mutations in topoisomerases and condensins that hold sister...
Nondisjunction01:29

Nondisjunction

During meiosis, chromosomes occasionally separate improperly. This occurs due to failure of homologous chromosome separation during meiosis I or failed sister chromatid separation during meiosis II. In some species, notably plants, nondisjunction can result in an organism with an entire additional set of chromosomes, which is called polyploidy. In humans, nondisjunction can occur during male or female gametogenesis and the resulting gametes possess one too many or one too few chromosomes.
Sex-linked Disorders01:43

Sex-linked Disorders

Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.

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Assessing Urinary Tract Junction Obstruction Defects by Methylene Blue Dye Injection
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Published on: October 12, 2017

Müllerian anomalies.

Lesley L Breech1, Marc R Laufer

  • 1Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, ML 4000, Cincinnati, OH 45229, USA. lesley.breech@cchmc.org

Obstetrics and Gynecology Clinics of North America
|April 7, 2009
PubMed
Summary
This summary is machine-generated.

Female reproductive tract anomalies arise from complex Müllerian system development. Early diagnosis and advanced treatments are crucial for managing these rare congenital conditions in girls and young women.

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Area of Science:

  • Reproductive medicine
  • Developmental biology
  • Pediatric surgery

Background:

  • The Müllerian system's development is intricate, with potential for congenital anomalies affecting the female reproductive tract.
  • Structural anomalies can be isolated or associated with other congenital defects, such as renal, bladder, or anorectal malformations.

Purpose of the Study:

  • To highlight the importance of recognizing and managing structural anomalies of the female reproductive tract in pediatric and young female populations.
  • To discuss the advancements in diagnostic and therapeutic approaches for these conditions.

Main Methods:

  • Review of current literature on female reproductive tract anomalies.
  • Discussion of diagnostic imaging techniques (e.g., ultrasound, MRI).
  • Overview of evolving surgical and nonsurgical management strategies.

Main Results:

  • Female reproductive tract anomalies, though rare, require prompt diagnosis and management.
  • Advancements in imaging and surgical techniques have improved outcomes.
  • Multidisciplinary care is essential for comprehensive management.

Conclusions:

  • Familiarity with female reproductive tract anomalies is vital for timely diagnosis and referral.
  • Improved diagnostic and treatment modalities enhance the care for girls and young women with these conditions.
  • Continued innovation in surgical and nonsurgical interventions is key to advancing patient care.