0
What else can I help you with?
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.
The effect of a neurotransmitter on the postsynaptic cell occurs when the neurotransmitter?
binds to specific receptors on the postsynaptic cell membrane, leading to changes in the cell's membrane potential. This can either excite or inhibit the postsynaptic neuron, influencing the likelihood of an action potential being generated. Ultimately, the effect of the neurotransmitter can influence the communication between neurons in the nervous system.
What determines if an action potential is initiated in the postsynaptic neuron?
Every time neurotransmitter is released from the presynaptic neuron it generates an excitatory post synaptic potential(EPSP) in the postsynaptic neuron. When the EPSP is greater than the threshold for excitation an action potential is generated.
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 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.
A neurotransmiter that allows sodium ions to leak into a postsynaptic neuron causes?
A neurotransmitter that allows sodium ions to leak into a postsynaptic neuron causes excitatory postsynaptic potentials. The neurotransmitter that is not synthesized in advance and packaged into synaptic vesicles is nitric oxide.
The tutor asks the students what determines whether a neurotransmitter will have an inhibitory or excitatory effect on the synaptic process. One student answers that it depends on the nature of the ne?
The effect of a neurotransmitter is determined by the type of receptors it binds to on the postsynaptic neuron. If the neurotransmitter activates ion channels that allow positive ions to flow into the neuron, it typically has an excitatory effect, leading to depolarization. Conversely, if it opens channels for negative ions or closes channels for positive ions, it results in hyperpolarization and an inhibitory effect. Thus, the same neurotransmitter can have different effects depending on the receptor type and the ions involved.
Neurotransmitters find their way to and subsequently trigger firing of that neuron?
Excitatory neurotransmitter
These lipid molecules may function as retrograde neurotransmitters and allow the postsynaptic neuron to decrease release of neurotransmitter from the presynaptic neuron?
endocannabinoids
Where are the receptors for neurotransmitters located?
Neurotransmitter receptors are located on the postsynaptic membrane of neurons. When a neurotransmitter binds to its specific receptor, it can either excite or inhibit the postsynaptic neuron, thereby influencing the transmission of signals in the brain.
What does the neurotransmitter bind to after it moves across the synaptic cleft?
The neurotransmitter binds to specific receptors on the postsynaptic neuron's membrane. This binding triggers a series of events that can either excite or inhibit the postsynaptic neuron, ultimately influencing its activity.
What is the action of dopamine on the postsynaptic membrane?
All neurotransmitters have an effect on the post synaptic membrane of either inhibition or excitation. Dopamine is an Excitatory NT so if a Excitatory Neuron meets with another Excitatory Neuron it creates Excitation. However if it meets with an Inhibitory Neuron Dopamine and the other Excitatory NT's wll only create Inhibition. Only GABA and Glycine are considered Inhhibitory NTransmitters.
