Related Experiment Video

Updated: Sep 3, 2026

Fish Sperm Assessment Using Software and Cooling Devices
07:57

Fish Sperm Assessment Using Software and Cooling Devices

Published on: July 28, 2018

Are changing semen parameters a universal phenomenon?

D N Osegbe, E O Amaku, S N Nnatu

    European Urology
    |January 1, 1986
    PubMed

    More Related Videos

    Fluorimetric Techniques for the Assessment of Sperm Membranes08:58

    Fluorimetric Techniques for the Assessment of Sperm Membranes

    Published on: November 28, 2018

    Sperm Collection of Differential Quality Using Density Gradient Centrifugation03:28

    Sperm Collection of Differential Quality Using Density Gradient Centrifugation

    Published on: November 29, 2018

    Related Concept Videos

    Spermatogenesis01:41

    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...
    Background and Environment Affect Phenotype02:27

    Background and Environment Affect Phenotype

    Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
    An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
    Sperm Transport01:15

    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...
    Sperm Structure and Semen Composition01:22

    Sperm Structure and Semen Composition

    During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
    Infertility in Males01:23

    Infertility in Males

    Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...