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reticular formation

a nerve network in the brainstem that plays an important role in controlling arousal.


the "little brain" attached to the rear of the brainstem ; its functions include processing sensory input and coordinating movement output and balanc.

limbic system

a doughnut-shaped system of neural structures below the cerebral hemiuspheres; associated with emotions such as fear and aggression and drives such as those for food and sex. includes the hippocampus, amygdola, and hypothalamus.


two lima beansized neural clusters that are components of the limbic system and are linked to emotion.


a neural structyre lying below the thalamus; it directs several maintenance activities, help govern endocrine system via the pituitary gland, and is linked to emotion.

cerebral cortex

the intricate fabric of interconnected neural cells that covers the cerebral hemisphers; the body's ultimate control and information processing center.

parietal lobes

the portion of the cerebral cortex lying at the top of the head and toward the rear \; receives sensory input for touch and body position.

occipital lobs

the portion of the cerebral cortex lying at the back of the head ; includes the visual areas, each receiving information from the opposite visual field.

motor cortex

an area at the rear of the frontal lobes that controls voluntary movements. / it the left hemisphere section controls the body's right side

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