The brain stem is where the reticular activating system is found. It is a very old system and so is a very old part of the brain common to lower life forms as well as higher life forms.
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Reticular Activating System
I'm not sure but the reticular activating system is what keeps you alert.
The Reticular Activating System (RAS)
reticular connective tissue
They are part of the midbrain. To be more specific, these 2 superior colliculi and 2 inferior colliculi can be found at the dorsal part of the midbrain which is the tectum.
Reticular Activating System
midbrain.
thalamus reticular activating system
Reticular Activating System
The reticular activating system
I'm not sure but the reticular activating system is what keeps you alert.
Inside the brainstem
The Reticular Activating System (RAS). It controls transitions between sleep and wakefulness, arousal, and attention.
The Reticular Activating System (RAS)
reticular activating system
Part of the mid-brain, it sends impulses to the cerebral cortex to keep it conscious and alert. It is also important for sleep and arousal.
The Medulla Oblongata or the RAC (Reticular Activating System)