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AKA Brainstem. Foramen Magnum. BRAINSTEM/ HINDBRAIN. Bainstem (Medulla) critical functions. Ascending and Descending Fiber Tracts Cranial Nerve Nuclei All parasympathetic tone HR Temp BP Etc Relative Inplasticity. Cranial nerve roots. Ascending ( and descending fibers).
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AKA Brainstem
Bainstem (Medulla) critical functions • Ascending and Descending Fiber Tracts • Cranial Nerve Nuclei • All parasympathetic tone • HR • Temp • BP • Etc • Relative Inplasticity
Pons and Cerebellum The RAS runs from medulla up to midbrain
Cerebellum • Direction • Amplitude • Force • Timing • Posture • Motor learning
The “Reticular activating system” Many tiny brain nuclei collectively involved in modulation of arousal
The Raphe nucleus:part of the RAS involved in sleep, dreaming…an area likely affected by SSRI’s and some hallucinogens