Related Experiment Video

Updated: Aug 10, 2026

Paradigms for Pharmacological Characterization of C. elegans Synaptic Transmission Mutants
18:01

Paradigms for Pharmacological Characterization of C. elegans Synaptic Transmission Mutants

Published on: August 18, 2008

Synaptic mechanism of pentylenetetrazole: selectivity for chloride conductance

T C Pellmar, W A Wilson

    Science (New York, N.Y.)
    |August 26, 1977
    PubMed

    More Related Videos

    Study of the Functions and Activities of Neuronal K-Cl Co-Transporter KCC2 Using Western Blotting10:08

    Study of the Functions and Activities of Neuronal K-Cl Co-Transporter KCC2 Using Western Blotting

    Published on: December 9, 2022

    Behavioral Characterization of Pentylenetetrazole-induced Seizures: Moving Beyond the Racine Scale07:35

    Behavioral Characterization of Pentylenetetrazole-induced Seizures: Moving Beyond the Racine Scale

    Published on: July 8, 2025

    Related Concept Videos

    Resting Membrane Potential01:24

    Resting Membrane Potential

    The relative difference in electrical charge, or voltage, between the inside and the outside of a cell membrane, is called the membrane potential. It is generated by differences in permeability of the membrane to various ions and the concentrations of these ions across the membrane.
    The Inside of a Neuron is More Negative
    The membrane potential of a cell can be measured by inserting a microelectrode into a cell and comparing the charge to a reference electrode in the extracellular fluid. The...
    Ligand-gated Ion Channels01:19

    Ligand-gated Ion Channels

    Ligand-gated ion channels are transmembrane proteins with a channel for ions to pass through and a binding site for a ligand. The channel opens only when a ligand attaches to the binding site.
    Three Subfamilies of Ligand-gated Ion Channels
    Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that include the...
    Chemical Synapses01:26

    Chemical Synapses

    Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
    Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
    Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

    Ligand-Gated Ion Channel Receptor: Gating Mechanism

    Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
    Depolarizing Blockers: Mechanism of Action01:28

    Depolarizing Blockers: Mechanism of Action

    Depolarizing blockers act on skeletal muscle fibers' membranes and induce their depolarization. Most depolarizing blockers have two quaternary N+ atoms that bind the nicotinic acetylcholine receptors and cause neuromuscular blockade within minutes.
    Succinylcholine is the most commonly used depolarizing blocker. Chemically, it constitutes two molecules of acetylcholine joined together by an acetate methyl group. They act on the receptors in the same way as acetylcholine. Because succinylcholine...
    Chemical Synapses01:26

    Chemical Synapses

    Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
    Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...