aka brainstem
DESCRIPTION
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). - PowerPoint PPT PresentationTRANSCRIPT
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AKABrainstem
![Page 2: AKA Brainstem](https://reader035.vdocuments.mx/reader035/viewer/2022081503/56815d76550346895dcb84b1/html5/thumbnails/2.jpg)
Foramen Magnum
![Page 3: AKA Brainstem](https://reader035.vdocuments.mx/reader035/viewer/2022081503/56815d76550346895dcb84b1/html5/thumbnails/3.jpg)
BRAINSTEM/ HINDBRAIN
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Bainstem (Medulla) critical functions
• Ascending and Descending Fiber Tracts• Cranial Nerve Nuclei• All parasympathetic tone
– HR• Temp• BP• Etc
• Relative Inplasticity
![Page 7: AKA Brainstem](https://reader035.vdocuments.mx/reader035/viewer/2022081503/56815d76550346895dcb84b1/html5/thumbnails/7.jpg)
Cranial nerve roots
![Page 8: AKA Brainstem](https://reader035.vdocuments.mx/reader035/viewer/2022081503/56815d76550346895dcb84b1/html5/thumbnails/8.jpg)
Ascending ( and descending fibers)
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Pons and Cerebellum
The RAS runs from medulla up to midbrain
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Cerebellum
• Direction• Amplitude• Force• Timing
– Posture– Motor learning
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The “Reticular activating system”
Many tiny brain nuclei collectively involved in modulation of arousal
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The Raphe nucleus:part of the RAS involved in sleep, dreaming…an area likely
affected by SSRI’s and some hallucinogens
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The PONS and the RAS- LC
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