molecules that are similar enough to a neurotransmitter to bind to its receptor sites on a dendrite and block that neurotransmitter's effects are called

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An antagonist is a molecule that is sufficiently similar to a neurotransmitter to bind to the receptor sites on a dendrite and inhibit the effects of that neurotransmitter.

Similar substances known as norepinephrine and epinephrine function in the body as hormones and neurotransmitters, respectively. Both chemicals are crucial to the body's fight-or-flight response, and when they enter the bloodstream, they raise blood pressure, heart rate, and blood sugar levels.

The synapse is the location where the dendrites of one neuron meet the axon of another neuron. named receptors by neuron. Like keys in locks, the neurotransmitters fit into the receptors.

Small amine molecules, amino acids, or neuropeptides make up the majority of neurotransmitters.

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