Examlex
How many pairs of cranial nerves emanate from the ventral surface of the brain?
Analogy
A comparison between two things, typically for the purpose of explanation or clarification.
Neurotransmitter
Chemical messengers that transmit signals across a chemical synapse from one neuron (nerve cell) to another 'target' neuron, muscle cell, or gland cell.
Receptor Site
A specific location on a cell membrane or within a cell where molecules such as hormones, neurotransmitters, or drugs can bind to elicit a physiological response.
Excitatory
Referring to signals or substances that increase the likelihood of a neuron firing an action potential.
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