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Related Concept Videos

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.
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...
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...
Types of Signaling Molecules01:32

Types of Signaling Molecules

In multicellular organisms, many molecules transmit signals between cells to pass information. These signals vary in complexity and include small peptides, nucleotides, steroids, fatty acid derivatives, and dissolved gases such as nitric oxide. Some signaling molecules diffuse through the plasma membrane to act locally between neighboring cells or travel long distances. Others remain attached to the cell surface, transmitting information to other cells only when they make contact. In some...
Types of Signaling Molecules01:32

Types of Signaling Molecules

In multicellular organisms, many molecules transmit signals between cells to pass information. These signals vary in complexity and include small peptides, nucleotides, steroids, fatty acid derivatives, and dissolved gases such as nitric oxide. Some signaling molecules diffuse through the plasma membrane to act locally between neighboring cells or travel long distances. Others remain attached to the cell surface, transmitting information to other cells only when they make contact. In some...

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Related Experiment Video

Updated: Jul 2, 2026

Presynaptically Silent Synapses Studied with Light Microscopy
11:02

Presynaptically Silent Synapses Studied with Light Microscopy

Published on: January 4, 2010

Signaling by synaptogenic molecules.

Thomas Biederer1, Massimiliano Stagi

  • 1Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA. thomas.biederer@yale.edu

Current Opinion in Neurobiology
|August 30, 2008
PubMed
Summary
This summary is machine-generated.

Synapse formation in the central nervous system relies on signaling pathways, adhesion molecules, and secreted factors. Understanding these principles helps map the intricate blueprint of neural connections.

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Related Experiment Videos

Last Updated: Jul 2, 2026

Presynaptically Silent Synapses Studied with Light Microscopy
11:02

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Published on: January 4, 2010

Quantifying Synapses: an Immunocytochemistry-based Assay to Quantify Synapse Number
18:11

Quantifying Synapses: an Immunocytochemistry-based Assay to Quantify Synapse Number

Published on: November 16, 2010

Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy
12:24

Mimicking the Function of Signaling Proteins: Toward Artificial Signal Transduction Therapy

Published on: September 29, 2016

Area of Science:

  • Neuroscience
  • Cell Biology
  • Developmental Biology

Background:

  • Synapse formation is crucial for central nervous system (CNS) function.
  • Multiple signaling pathways orchestrate synapse development.
  • General principles of synapse organization are being uncovered across model organisms.

Purpose of the Study:

  • To summarize current understanding of synapse formation mechanisms.
  • To highlight key molecular players and processes involved in synapse development.
  • To outline the emerging blueprint for integrating distinct signaling steps.

Main Methods:

  • Review of existing literature on synapse formation.
  • Analysis of studies from various model organisms.
  • Synthesis of data on molecular and cellular mechanisms.

Main Results:

  • Synapse organization involves dedicated synaptic adhesion molecules.
  • Receptor-ligand interactions mediate synaptic signaling.
  • Secreted molecules regulate synapse formation.
  • Intracellular effectors control signaling and cytoskeletal dynamics.

Conclusions:

  • A comprehensive blueprint for synapse formation is emerging.
  • Temporal and spatial integration of signaling steps is essential.
  • Further research is needed to fully integrate these distinct processes.