What happens at the synapse between two neurons?

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A synapse is the gap blw the two neurons. At synapse the electrical signal converted into chemicals that can easily cross over the gap and pass on the next neurons where it can again converted into electrical signals....

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Synapse is the gap between two neurons.........through this chemically masseges are transfering to brain........it can be wrong or correct friend........

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It releases neurotransmeter which transmit the electrical impulse in chemical form .

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The electric impulse releases chemical substances (neurotransmitter ) which passes through the synapse and start similar electric impulse in the next neuron

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Actually.. she is asking that what happen...but..u all r saying about synapse...then..answer is...when gaps between two neurons fulfilled by..any activity..then it secretes chemical engimes..which helpful in transferring of message to our brain

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Introduction:
At the synapse, which is the junction between two neurons, information is transmitted from one neuron to another. This process involves the release of chemical messengers called neurotransmitters, which play a crucial role in facilitating communication between neurons.

Pre-synaptic Neuron:
The pre-synaptic neuron is the neuron that sends the signal. When an action potential reaches the end of the pre-synaptic neuron, it triggers a cascade of events at the synapse.

Release of Neurotransmitters:
Upon reaching the synapse, the action potential causes tiny vesicles within the pre-synaptic neuron to fuse with the cell membrane. These vesicles contain neurotransmitters, which are then released into the synapse.

Diffusion and Binding:
Once released into the synapse, neurotransmitters diffuse across the small gap between the pre-synaptic and post-synaptic neurons. They then bind to specific receptor sites on the post-synaptic neuron. The binding of neurotransmitters to receptors is highly specific, similar to a lock and key mechanism.

Excitatory and Inhibitory Neurotransmitters:
Neurotransmitters can have either excitatory or inhibitory effects on the post-synaptic neuron. Excitatory neurotransmitters increase the likelihood of the post-synaptic neuron firing an action potential, while inhibitory neurotransmitters decrease this likelihood.

Postsynaptic Potential:
The binding of neurotransmitters to receptors on the post-synaptic neuron induces changes in its membrane potential. This is known as a postsynaptic potential. Excitatory postsynaptic potentials (EPSPs) depolarize the membrane, making the neuron more likely to generate an action potential. In contrast, inhibitory postsynaptic potentials (IPSPs) hyperpolarize the membrane, reducing the likelihood of an action potential.

Integration of Signals:
The post-synaptic neuron receives signals from multiple pre-synaptic neurons, and these signals are integrated to determine whether an action potential will be generated. If the combined effects of the EPSPs and IPSPs reach a threshold, the post-synaptic neuron will generate an action potential.

Reuptake or Degradation:
After transmission, neurotransmitters can be cleared from the synapse through reuptake or degradation. Reuptake involves the reabsorption of neurotransmitters by the pre-synaptic neuron for future use. Degradation, on the other hand, occurs when enzymes break down the neurotransmitters in the synapse.

Conclusion:
The synapse is a crucial site for communication between neurons. By releasing neurotransmitters and binding to receptors on the post-synaptic neuron, the synapse allows for the transmission of signals and integration of information. Understanding the processes that occur at the synapse is essential for comprehending the complex workings of the nervous system.

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