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Glossar
15.03.2017
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- Glossary
Adrenaline
Along with dopamine and norepinephrine, it belongs to the catecholamines. Adrenaline, also known as epinephrine, is the classic stress hormone. It is produced in the adrenal medulla and causes an increase in heart rate and heartbeat strength, thus preparing the body for increased stress. In the brain, adrenaline also acts as a neurotransmitter (messenger substance), where it binds to so-called adrenoreceptors.
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- Glossary
Norepinephrine
Along with dopamine and adrenaline, norepinephrine (NE) or sometimes noradrenaline (NA)belongs to the catecholamines. It is produced in cells of the locus coeruleus and in the adrenal medulla and usually has a stimulating effect. Noradrenaline is often associated with stress.
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- Glossary
Propranolol
A medication for high blood pressure – a beta blocker. Beta blockers prevent the effects of adrenaline and noradrenaline.
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- Glossary
Stress hormone system
During the stress response, the sympathetic nervous system and a number of hormone glands – the hypothalamus, pituitary gland, and adrenal cortex – work together to prepare the body for increased demands. The sympathetic nervous system uses the hormones adrenaline and noradrenaline as messenger substances. Their activity increases breathing and heart rate while improving blood flow to the muscles. During the stress response, the adrenal cortex releases the hormone cortisol. It acts via negative feedback on the hypothalamus and pituitary gland, thereby slowing down further cortisol release. When the stressor subsides and the sympathetic tone decreases, the parasympathetic nervous system can regain the upper hand and bring the organism into a state of rest.
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- Grundlagen
- Anatomy
The Amygdala
Without the amygdala, humans lose their sense of fear. With the amygdala, they also recognize the fear of others.
22.12.2023
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- Percipience
- Hearing
Full Blast to the Ears
Noise not only makes you ill, it also damages your brain.
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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
