BioScience Dictionary

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Found Neurotransmitter 3 times.

Displaying results 1 to 10.

1. Neurotransmitter
A chemical, such as acetylcholine , which is released from the axon of one neuron and binds to a specific site in the dendrite of an adjacent neuron, thus triggering a nerve impulse.

2. Neurotransmitter system
A group of nerve cells that use the same neurotransmitter to communicate.

3. Neurotransmitters
Chemicals released from the tip of an axon into the synaptic cleft when a nerve impulse arrives; may stimulate or inhibit the next neuron. The chemical that crosses the synaptic cleft and causes the transmission of the nerve message in an adjacent neuron or the stimulation of an effector cell (muscle or gland).