Neurobioloogias sönade seletus, ingl keelne
regulation, sensory perception or sleep. Probably implicated in depression.
SODIUM-POTASSIUM PUMP – ATP*-linked enzyme* embedded in the neuronal
membrane* which expels Na+ ions* from the inside and imports K+ ions from the
outside to inside of the neurone*. This process is energy-dependent as it works against
the gradient of ion concentration.
STIMULUS – An environmental event which may be detected by sensory receptors.
STROKE – An impeded blood supply to the brain, caused by a blood clot or a rupture
of the blood vessel. Deprived of oxygen, which is carried by blood, neurones die in
the affected brain area.
SULCUS – The shallower grooves on the brain surface (deeper groves are called
fissures). Plural = sulci.
SYMPATHETIC NERVOUS SYSTEM – Part of the autonomic nervous system*,
responsible for mobilizing the body’s resources during times of stress and arousal. It
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