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- Glossary
Lock and key
In terms of the processes in a synapse, this means that the chemical messenger and its receptor must fit together like a key in a lock. The receptor therefore only "accepts" a very specific messenger.
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- Grundlagen
- Communication in the Brain
Neurotransmitters: Messenger Molecules in the Brain
“Happy hormone” & Co.: Without neurotransmitters, nerve cells would not be able to communicate.
05.08.2025
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Glossar
15.03.2017
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- Glossary
Antagonist
Due to the lock-and-key principle, transmitters (messenger substances) can only bind to specific receptors. An antagonist can be so similar to this transmitter that it can bind to this receptor. It thus prevents the actual transmitter from activating the receptor and becoming effective. There are also antagonists that do not bind directly to the receptor but alter the "lock," i.e., the receptor, so that the key no longer fits.
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- Grundlagen
- Communication in the Brain
Legalize it?! What are the medical benefits of cannabis?
Are cannabinoid-based drugs suitable for clinical use? Experts remain divided on the issue.
11.12.2025
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- Grundlagen
- Communication in the Brain
Nerve Cells in Conversation
No chaos despite sensory overload – neurons communicate silently, efficiently, and at breakneck speed.
16.04.2012
