Video Experimental Relacionado

Updated: Jul 14, 2026

Two Types of Assays for Detecting Frog Sperm Chemoattraction
10:02

Two Types of Assays for Detecting Frog Sperm Chemoattraction

Published on: December 27, 2011

Los canales iónicos. canales iónicos. Nadar con el esperma.

D L Garbers

    Nature
    |October 12, 2001
    PubMed
    Resumen

    No abstract available in PubMed .

    Más Videos Relacionados

    Measuring Intracellular Ca2+ Changes in Human Sperm using Four Techniques: Conventional Fluorometry, Stopped Flow Fluorometry, Flow Cytometry and Single Cell Imaging19:26

    Measuring Intracellular Ca2+ Changes in Human Sperm using Four Techniques: Conventional Fluorometry, Stopped Flow Fluorometry, Flow Cytometry and Single Cell Imaging

    Published on: May 24, 2013

    Recording Electrical Currents across the Plasma Membrane of Mammalian Sperm Cells09:37

    Recording Electrical Currents across the Plasma Membrane of Mammalian Sperm Cells

    Published on: February 14, 2021

    Videos de Conceptos Relacionados

    Ion Channels01:19

    Ion Channels

    The movement of ions like sodium, potassium, and calcium into and out of the cell is essential to maintain the electrochemical gradient in living cells. The ion channels—a class of membrane transport proteins—help maintain this ionic gradient for the smooth functioning of physiological activities such as maintaining cell size and volume, conducting nerve impulses, and gas and nutrient exchange.
    Ion channels are specialized integral membrane proteins on the plasma membrane that allow specific...
    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...
    Aquaporins01:25

    Aquaporins

    Aquaporins or AQPs are a family of integral membrane proteins whose primary function is to transport water, while some called aquaglyceroporins also transport glycerol. In addition, aquaporins have also been suspected to be involved in transporting volatile substances, such as carbon dioxide and ammonia, across membranes. Such AQPs that act as gas channels are often highly expressed in cells involved in the gaseous exchange, such as red blood cells, epithelial cells, and pulmonary capillaries.
    Electrochemical Gradient and Channel Proteins: An Overview01:21

    Electrochemical Gradient and Channel Proteins: An Overview

    An electrochemical gradient is a fundamental concept in biology and chemistry. It regulates the movement of ions across cell membranes. This movement is influenced by two factors:
    The electrical gradient: The electrical gradient across cell membranes refers to the difference in electric charge between the inside and outside of a cell.  This difference drives the movement of ions towards or away from the cells. For instance, if the inside of the cell is more negatively charged relative to the...
    Spermatogenesis01:22

    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...
    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...