Chemical synapse
Chemical Synapse
A Chemical Synapse (/kɪˈmɪkəl ˈsaɪnæps/; from Greek syn "together" and haptein "to clasp") is a type of biological synapse that utilizes chemical signals for communication between two neurons. It is a key component in the nervous system, facilitating the transmission of signals across the neuronal gap or synaptic cleft.
Structure
The chemical synapse consists of the presynaptic neuron, the synaptic cleft, and the postsynaptic neuron. The presynaptic neuron releases neurotransmitters into the synaptic cleft, which are then received by the postsynaptic neuron. This process allows for the transmission of signals from one neuron to another.
Function
Chemical synapses allow for the transmission of signals from one neuron to another through the use of neurotransmitters. These neurotransmitters are released from the presynaptic neuron and received by the postsynaptic neuron, allowing for the propagation of the signal.
Types
There are two main types of chemical synapses: excitatory synapses and inhibitory synapses. Excitatory synapses increase the likelihood of the postsynaptic neuron firing an action potential, while inhibitory synapses decrease this likelihood.
Related Terms
- Neuron
- Neurotransmitter
- Synaptic cleft
- Presynaptic neuron
- Postsynaptic neuron
- Excitatory synapse
- Inhibitory synapse
External links
- Medical encyclopedia article on Chemical synapse
- Wikipedia's article - Chemical synapse
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