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Related Concept Videos

The Synapse02:47

The Synapse

Neurons communicate with one another by passing on their electrical signals to other neurons. A synapse is the location where two neurons meet to exchange signals. At the synapse, the neuron that sends the signal is called the presynaptic cell, while the neuron that receives the message is called the postsynaptic cell. Note that most neurons can be both presynaptic and postsynaptic, as they both transmit and receive information.
Overview of Synapses01:25

Overview of Synapses

A synapse is a specialized structure where two neurons connect, allowing them to pass an electrical or chemical signal to another neuron. It is the point of communication between neurons. The term "synapse" is derived from the Greek word "synapsis," which means "conjunction." The entire process of neural communication revolves around the synapse. When activated, a neuron releases chemicals known as neurotransmitters into the synapse. These neurotransmitters cross the synapse and bind to...
Synaptic Signaling01:09

Synaptic Signaling

Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
Most synapses are chemical, meaning an electrical impulse or action potential spurs the release of chemical messengers called neurotransmitters. The neuron sending the signal is called the presynaptic neuron, and the neuron receiving the signal is the postsynaptic neuron.
The presynaptic neuron fires an action potential that...
Synaptic Signaling01:12

Synaptic Signaling

Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
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...
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...

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

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Localization of the presynaptic cytomatrix protein Piccolo at ribbon and conventional synapses in the rat retina: comparison with Bassoon.

The Journal of comparative neurology·2001
Same author

Gephyrin-independent clustering of postsynaptic GABA(A) receptor subtypes.

Molecular and cellular neurosciences·2001
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Localization of glutamate receptors at a complex synapse. The mammalian photoreceptor synapse.

Cell and tissue research·2001
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Heterogeneous distribution of AMPA glutamate receptor subunits at the photoreceptor synapses of rodent retina.

The European journal of neuroscience·2001
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The metabotropic GABAB receptor directly interacts with the activating transcription factor 4.

The Journal of biological chemistry·2000
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Synaptic localization of NMDA receptor subunits in the rat retina.

The Journal of comparative neurology·2000

Related Experiment Video

Updated: May 29, 2026

Evaluation of Synapse Density in Hippocampal Rodent Brain Slices
07:44

Evaluation of Synapse Density in Hippocampal Rodent Brain Slices

Published on: October 6, 2017

Structure and function of a complex sensory synapse.

H Regus-Leidig1, J H Brandstätter

  • 1Animal Physiology, Department of Biology, University of Erlangen-Nuremberg, Germany.

Acta Physiologica (Oxford, England)
|September 2, 2011
PubMed
Summary

The retina

Area of Science:

  • Neuroscience
  • Vision Science
  • Cell Biology

Background:

  • The retina initiates visual processing by converting light into neural signals via rod and cone photoreceptors.
  • Parallel processing is crucial in the mammalian retina, segregating visual information at photoreceptor terminals.
  • Photoreceptor ribbon synapses are complex structures essential for transmitting visual data.

Purpose of the Study:

  • To review current knowledge on the structural and functional specializations of rod and cone photoreceptor ribbon synapses.
  • To highlight the role of these synapses in parallel processing within the retina.

Main Methods:

  • Literature review of structural and functional studies on photoreceptor ribbon synapses.
  • Analysis of synaptic organization and signaling mechanisms.

More Related Videos

Electrophysiological Investigations of Retinogeniculate and Corticogeniculate Synapse Function
09:09

Electrophysiological Investigations of Retinogeniculate and Corticogeniculate Synapse Function

Published on: August 7, 2019

Preparation of Synaptic Plasma Membrane and Postsynaptic Density Proteins Using a Discontinuous Sucrose Gradient
08:06

Preparation of Synaptic Plasma Membrane and Postsynaptic Density Proteins Using a Discontinuous Sucrose Gradient

Published on: September 3, 2014

Related Experiment Videos

Last Updated: May 29, 2026

Evaluation of Synapse Density in Hippocampal Rodent Brain Slices
07:44

Evaluation of Synapse Density in Hippocampal Rodent Brain Slices

Published on: October 6, 2017

Electrophysiological Investigations of Retinogeniculate and Corticogeniculate Synapse Function
09:09

Electrophysiological Investigations of Retinogeniculate and Corticogeniculate Synapse Function

Published on: August 7, 2019

Preparation of Synaptic Plasma Membrane and Postsynaptic Density Proteins Using a Discontinuous Sucrose Gradient
08:06

Preparation of Synaptic Plasma Membrane and Postsynaptic Density Proteins Using a Discontinuous Sucrose Gradient

Published on: September 3, 2014

Main Results:

  • Rod and cone photoreceptors possess specialized ribbon synapses with multiple output synapses.
  • These synapses facilitate faithful encoding and transfer of visual signals.
  • The pre- and post-synaptic specializations are key to parallel processing in the retina.

Conclusions:

  • Photoreceptor ribbon synapses are highly complex and critical for early visual processing.
  • Understanding these synapses is vital for comprehending retinal function and visual perception.