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What is a presynaptic neuron?
a neuron from the axon terminal of which an electrical impulse is transmitted across a synaptic cleft to the cell body or one or more dendrites of a postsynaptic neuron by the release of a chemical neurotransmitter.
When two neurons are separated by a synapse which two parts of the neurons meet?
In a synapse, the terminal of the presynaptic neuron and the dendrite or cell body of the postsynaptic neuron meet. The presynaptic neuron releases neurotransmitters into the synaptic cleft, where they bind to receptors on the postsynaptic neuron, allowing for communication between the two neurons.
When two or more presynaptic neurons synapse with a single postsynaptic neuron in the CNS what pathway is formed?
When two or more presynaptic neurons synapse with a single postsynaptic neuron in the central nervous system (CNS), it forms a convergent pathway. This allows for integration of multiple inputs onto a single neuron, influencing the postsynaptic neuron's response.
What is the name of the tiny gap the neurotransmitter has to diffuse across to reach the membrane of the postsynaptic neuron?
The tiny gap that the neurotransmitter has to diffuse across to reach the membrane of the postsynaptic neuron is called the synaptic cleft. It separates the axon terminal of the presynaptic neuron from the dendrite of the postsynaptic neuron.
Neurotransmitters find their way to and subsequently trigger firing of that neuron?
Excitatory neurotransmitter
What is a presynaptic neuron?
a neuron from the axon terminal of which an electrical impulse is transmitted across a synaptic cleft to the cell body or one or more dendrites of a postsynaptic neuron by the release of a chemical neurotransmitter.
When two neurons are separated by a synapse which two parts of the neurons meet?
In a synapse, the terminal of the presynaptic neuron and the dendrite or cell body of the postsynaptic neuron meet. The presynaptic neuron releases neurotransmitters into the synaptic cleft, where they bind to receptors on the postsynaptic neuron, allowing for communication between the two neurons.
What is an example of a presynaptic cell?
An example of a presynaptic cell is a neuron that releases neurotransmitters into the synaptic cleft to communicate with the postsynaptic cell.
Which structures are especially important for communication between one neuron and another?
The structures especially important for communication between neurons are synapses, which are the junctions where one neuron communicates with another. Within the synapse, neurotransmitters are released from the presynaptic neuron and bind to receptors on the postsynaptic neuron, facilitating signal transmission. Additionally, the axon terminals of the presynaptic neuron and the dendrites of the postsynaptic neuron play crucial roles in this communication process.
When two or more presynaptic neurons synapse with a single postsynaptic neuron in the CNS what pathway is formed?
When two or more presynaptic neurons synapse with a single postsynaptic neuron in the central nervous system (CNS), it forms a convergent pathway. This allows for integration of multiple inputs onto a single neuron, influencing the postsynaptic neuron's response.
When does a postsynaptic potential occur?
A postsynaptic potential occurs when neurotransmitters released from the presynaptic neuron bind to receptors on the postsynaptic neuron, causing a change in its membrane potential. This change can be either depolarizing (excitatory) or hyperpolarizing (inhibitory), influencing the likelihood of the postsynaptic neuron firing an action potential.
What are the synaptic events?
Synaptic events refer to the processes involved in communication between neurons at synapses. These events include neurotransmitter release from the presynaptic neuron, binding of neurotransmitters to receptors on the postsynaptic neuron, and subsequent changes in the postsynaptic neuron's membrane potential. This can lead to excitation or inhibition of the postsynaptic neuron based on the type of neurotransmitter and receptors involved.
What is the name of the tiny gap the neurotransmitter has to diffuse across to reach the membrane of the postsynaptic neuron?
The tiny gap that the neurotransmitter has to diffuse across to reach the membrane of the postsynaptic neuron is called the synaptic cleft. It separates the axon terminal of the presynaptic neuron from the dendrite of the postsynaptic neuron.
These lipid molecules may function as retrograde neurotransmitters and allow the postsynaptic neuron to decrease release of neurotransmitter from the presynaptic neuron?
endocannabinoids
Where at a synapse which direction does transmission usually occur?
At a synapse, transmission typically occurs from the presynaptic neuron to the postsynaptic neuron. The presynaptic neuron releases neurotransmitters into the synaptic cleft, which then bind to receptors on the postsynaptic neuron's membrane, facilitating the transmission of signals. This unidirectional flow is essential for proper neuronal communication and signal processing in the nervous system.
Neurotransmitters find their way to and subsequently trigger firing of that neuron?
Excitatory neurotransmitter
What is a synapse and how is information transmitted at the synapse?
A synapse is a structure that allows communication between neurons. Information is transmitted across the synapse through the release of neurotransmitters from the presynaptic neuron, which then bind to receptors on the postsynaptic neuron, leading to changes in the postsynaptic neuron's electrical activity.
