Pre-locus coeruleus
Pre-locus coeruleus (also known as pre-LC) is a region in the brainstem that is involved in the regulation of sleep and wakefulness. It is located in the pons, a part of the brainstem, and is adjacent to the locus coeruleus, a region that produces norepinephrine, a neurotransmitter involved in arousal and attention.
Etymology
The term "pre-locus coeruleus" is derived from Latin. "Pre-" means "before" or "in front of", "locus" means "place" or "location", and "coeruleus" means "blue". This name is given because of its location anterior to the locus coeruleus, which is named for its blueish color due to the presence of norepinephrine.
Function
The pre-LC is involved in the regulation of sleep and wakefulness. It is thought to play a role in the initiation of REM sleep, a phase of sleep characterized by rapid eye movement and vivid dreaming. The pre-LC sends signals to other parts of the brain, including the thalamus and the cortex, to promote wakefulness.
Related Terms
- Locus coeruleus: A region in the brainstem that produces norepinephrine and is involved in arousal and attention.
- Norepinephrine: A neurotransmitter involved in arousal and attention.
- Pons: A part of the brainstem where the pre-LC is located.
- REM sleep: A phase of sleep characterized by rapid eye movement and vivid dreaming.
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