What is the mode of action of excitatory and inhibitory neurotransmitters?
Understand the Problem
The question is asking for the mechanisms through which excitatory and inhibitory neurotransmitters operate in the nervous system, including their effects on neuron activity.
Answer
Excitatory neurotransmitters generate an action potential, while inhibitory neurotransmitters prevent it.
Excitatory neurotransmitters promote the generation of an action potential in the receiving neuron, enhancing neuronal activity. Inhibitory neurotransmitters prevent the generation of an action potential, reducing neuronal activity. The effect depends on the specific receptors these neurotransmitters bind to.
Answer for screen readers
Excitatory neurotransmitters promote the generation of an action potential in the receiving neuron, enhancing neuronal activity. Inhibitory neurotransmitters prevent the generation of an action potential, reducing neuronal activity. The effect depends on the specific receptors these neurotransmitters bind to.
More Information
Excitatory neurotransmitters include glutamate, which is the most common neurotransmitter in the brain, while inhibitory ones include GABA and glycine. These neurotransmitters play a crucial role in balancing neuronal communication and overall brain function.
Tips
A common mistake is assuming that the same neurotransmitter always has the same effect in every situation; its effect can vary depending on the type of receptor it binds to.
Sources
- What Are Excitatory Neurotransmitters? - Healthline - healthline.com
- Neurotransmitters: What They Are, Functions & Types - my.clevelandclinic.org
- Neurotransmitters and receptors (article) - Khan Academy - khanacademy.org
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