Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Sperm Transport

Sperm Transport

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...

Uterine Tubes

Uterine Tubes

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...

Testes: Histology

Testes: Histology

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...

Spermatogenesis

Spermatogenesis

Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male reproductive...

Spermatogenesis

Spermatogenesis

Spermatogenesis is a complex process that involves the development of sperm cells from undifferentiated stem cells in the seminiferous tubules of the testes. The process is essential for the production of mature and functional sperm cells that are capable of fertilizing an egg.
The process of spermatogenesis can be divided into mitosis, meiosis, and spermiogenesis. During mitosis, the spermatogonia or stem cells divide to produce two identical daughter cells, type A and B spermatogonia. Type-A...

Accessory Glands of the Male Reproductive System

Accessory Glands of the Male Reproductive System

The accessory ducts involved in sperm maturation and transportation include the epididymides, vasa deferentia, ejaculatory ducts, and urethra. These ducts play a critical role in the maturation, storage, and transportation of sperm from the testes to the urethra, where it is then released during ejaculation.
The epididymis is a small, comma-shaped organ located at the back of each testicle. The epididymis can be divided into three main parts: the head, body, and tail. The head of the epididymis...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Update on the comparative <i>in vitro</i> activity of cefiderocol and four β-lactam-β-lactamase-inhibitor combinations against clinically important Gram-negative pathogens.

JAC-antimicrobial resistance·2026

Same author

Concerning emergence of a new vancomycin-resistant Enterococcus faecium strain ST1299/CT1903/vanA at a tertiary university centre in South Germany.

The Journal of hospital infection·2023

Same author

Bacterial production of recombinant contraceptive vaccine antigen from CatSper displayed on a human papilloma virus-like particle.

Vaccine·2023

Same author

Epidemiology and outcomes of vancomycin-resistant enterococcus infections: a systematic review and meta-analysis.

The Journal of hospital infection·2023

Same author

Temocillin susceptibility in Enterobacterales with an ESBL/AmpC phenotype.

International journal of antimicrobial agents·2020

Same author

Infections caused by extended-spectrum β-lactamase-producing Enterobacterales after rectal colonization with ESBL-producing Escherichia coli or Klebsiella pneumoniae.

Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases·2019

Search research articles

Related Experiment Video

Updated: Jul 3, 2026

A Seminiferous Tubule Squash Technique for the Cytological Analysis of Spermatogenesis Using the Mouse Model

A Seminiferous Tubule Squash Technique for the Cytological Analysis of Spermatogenesis Using the Mouse Model

Published on: February 6, 2018

Membranous tubes in pseudoscorpion spermiogenesis.

G Werner¹, S R Bawa

¹Medical Biology, Medical Faculty of the Saar University D-6650 Homburg/Saar, Federal Republic of Germany.

|January 1, 1989

Summary

Pseudoscorpions utilize unique membranous tubes instead of microtubules for spermatid differentiation. These structures, linked to the endoplasmic reticulum, may support cell elongation and transport.

Area of Science:

* Reproductive Biology
* Cell Biology
* Arachnology

Background:

* Spermatid differentiation is a complex process crucial for male fertility.
* Microtubules are typically essential for structural support and shaping during this process in many species.
* The pseudoscorpion Diplotemnus sp. presents a unique case in sperm development.

Purpose of the Study:

* To investigate the mechanism of spermatid differentiation in the pseudoscorpion Diplotemnus sp.
* To identify the structures involved in supporting spermatid elongation in the absence of microtubules.
* To explore potential roles of these novel structures in cellular transport.

Main Methods:

* Transmission electron microscopy was used to examine spermatid ultrastructure.

More Related Videos

Microdissection of Black Widow Spider Silk-producing Glands

Microdissection of Black Widow Spider Silk-producing Glands

Published on: January 11, 2011

Transillumination-Assisted Dissection of Specific Stages of the Mouse Seminiferous Epithelial Cycle for Downstream Immunostaining Analyses

Transillumination-Assisted Dissection of Specific Stages of the Mouse Seminiferous Epithelial Cycle for Downstream Immunostaining Analyses

Published on: October 7, 2020

Related Experiment Videos

Last Updated: Jul 3, 2026

A Seminiferous Tubule Squash Technique for the Cytological Analysis of Spermatogenesis Using the Mouse Model

A Seminiferous Tubule Squash Technique for the Cytological Analysis of Spermatogenesis Using the Mouse Model

Published on: February 6, 2018

Microdissection of Black Widow Spider Silk-producing Glands

Microdissection of Black Widow Spider Silk-producing Glands

Published on: January 11, 2011

Transillumination-Assisted Dissection of Specific Stages of the Mouse Seminiferous Epithelial Cycle for Downstream Immunostaining Analyses

Transillumination-Assisted Dissection of Specific Stages of the Mouse Seminiferous Epithelial Cycle for Downstream Immunostaining Analyses

Published on: October 7, 2020

* Detailed morphological analysis of developing spermatids in Diplotemnus sp.

Main Results:

* Membranous tubes (approx. 50 nm diameter) associated with endoplasmic reticulum were observed.
* These tubes, lacking electron-dense contents, connected to the cell membrane.
* Tubes formed bundles during spermatid elongation and disappeared as cells rounded off.

Conclusions:

* Pseudoscorpions employ unique membranous tubes, not microtubules, for spermatid differentiation.
* These tubes likely provide structural support during elongation, analogous to microtubule functions.
* Observed connections suggest a potential role in cellular transport mechanisms.