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Related Concept Videos

Testes: Gross Anatomy01:19

Testes: Gross Anatomy

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The testes, also known as testicles, are the male gonads. They are housed within the scrotum, a sac-like structure located beneath the penis. The scrotum's primary role is to regulate the temperature of the testes, which is crucial for sperm production.
Each testis is surrounded by the tunica albuginea, a dense connective tissue layer that provides structural support and protection. This layer is covered by an outer serous membrane called the tunica vaginalis, which helps reduce friction...
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Testes: Histology01:27

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A tough, fibrous membrane, the tunica albuginea, covers the testes, extending inward to form fibrous partitions or septa, dividing them into internal compartments called lobules. Each lobule has 1 to 3 tightly coiled seminiferous tubules where sperm production occurs. These tubules merge into a tubular network at the back of the testis, known as the rete testis. It connects to 15 to 20 efferent ductules, leading to the epididymis.
The spermatogenic cells, responsible for producing sperm, are...
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Torsion of Noncircular Members01:16

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Circular shafts undergoing torsional stress maintain their cross-sectional integrity due to their axisymmetric nature. This symmetry ensures an even distribution of stress, allowing the shaft to withstand torsion without distorting. In contrast, square bars, lacking this axial symmetry, experience significant distortion across their cross-sections when subjected to torsion, with the exception of along their diagonals and at lines connecting midpoints. A detailed examination of a cubic element...
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Disorders of the Male Reproductive System01:20

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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.
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Nondisjunction01:29

Nondisjunction

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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.
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Related Experiment Video

Updated: Oct 9, 2025

Teratoma Generation in the Testis Capsule
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Neonatal testicular torsion.

Ranjit I Kylat1, Mohamed N Ahmed1

  • 1Department of Pediatrics, College of Medicine, University of Arizona, Tucson, AZ, w, Tucson.

African Journal of Paediatric Surgery : AJPS
|December 17, 2021
PubMed
Summary

Neonatal testicular torsion (NTT) affects 6.1/100,000 live births, often occurring prenatally. Early diagnosis and surgical intervention are crucial for salvaging the affected testis.

Area of Science:

  • Pediatric Surgery
  • Neonatal Urology
  • Reproductive Medicine

Background:

  • Testicular torsion (TT) is a surgical emergency caused by spermatic cord rotation, leading to testicular ischemia.
  • Neonatal TT (NTT), occurring within the first month of life, has an incidence of 6.1/100,000 live births and is typically extravaginal.
  • Prenatal occurrence may lead to asymptomatic cases, potentially increasing the true incidence.

Purpose of the Study:

  • To review the diagnostic approaches for neonatal testicular torsion.
  • To outline current management strategies for NTT, emphasizing timely intervention.
  • To discuss the prevention of asynchronous torsion through early contralateral orchiopexy.

Main Methods:

  • Review of existing literature on neonatal testicular torsion diagnosis and management.
Keywords:
Extravaginalorchiectomyorchiopexyperinataltesticular torsion

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  • Analysis of clinical presentation and diagnostic utility of physical examination and ultrasound (US).
  • Evaluation of surgical and non-operative management options for NTT.

    • Main Results:

    • Physical examination is often adequate for NTT diagnosis; US primarily excludes other conditions.
    • Prenatal torsion may result in non-salvageable testes.
    • Asynchronous torsion can be prevented by early contralateral orchiopexy during exploration for unilateral TT.

    Conclusions:

    • Prompt diagnosis and surgical management are essential for testicular salvage in NTT.
    • Non-operative detorsion methods are ineffective and not recommended for NTT.
    • Contralateral orchiopexy is a key preventive measure against asynchronous torsion.