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consisting of the midbrain, pons, and medulla oblongata, lies at the base of the cerebrum, and connects the brain to the spinal cord.

located between the diencephalon and pons, contains bundles of myelinated nerve fibers that convey impulses to and from higher parts of the brain, and masses of gray matter that serve as reflex centers.

contains centers for auditory and visual reflexes

lying between the midbrain and medulla oblongata, transmits impulses between the brain and spinal cord, and contains centers that regulate the rate and depth of breathing.

transmits all ascending and descending impulses between the brain and spinal cord.

also houses nuclei that control visceral functions

controls heart rate

blood pressure control

works along with the pons to control the rate and depth of breathing

Throughout the brain stem, hypothalamus, cerebrum, cerebellum, and basal ganglia, is a complex network of nerve fibers connecting tiny islands of gray matter; this network is the

Decreased activity in the reticular formation results in __

increased activity in the reticular formation results in __

The reticular formation filters incoming __