
Contents
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The Brainstem Is Critical to Life The Brainstem Is Critical to Life
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Brainstem Functions Change from Life-Support Caudally to Expression Rostrally Brainstem Functions Change from Life-Support Caudally to Expression Rostrally
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Major Structures Involved in Movement and Light Touch Sensation Are Present in the Medulla Major Structures Involved in Movement and Light Touch Sensation Are Present in the Medulla
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Motor Structures Dominate the External Landscape of the Pons and Cerebellum Motor Structures Dominate the External Landscape of the Pons and Cerebellum
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Colliculi Cap the Midbrain and Cerebral Peduncles Flank the Base of the Midbrain Colliculi Cap the Midbrain and Cerebral Peduncles Flank the Base of the Midbrain
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The Spinomedullary Junction Is Marked by the Pyramidal Decussation The Spinomedullary Junction Is Marked by the Pyramidal Decussation
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The Caudal Medulla Is Marked by the Inferior Olives and Internal Arcuate Fibers The Caudal Medulla Is Marked by the Inferior Olives and Internal Arcuate Fibers
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The Caudal Medulla Is Densely Populated by Cranial Nerve Nuclei The Caudal Medulla Is Densely Populated by Cranial Nerve Nuclei
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Cranial Nerve Rootlets and the Opening of the Fourth Ventricle Mark the Mid-medulla Cranial Nerve Rootlets and the Opening of the Fourth Ventricle Mark the Mid-medulla
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Wallenberg Syndrome Results from a Lesion of the Lateral Caudal Medulla Wallenberg Syndrome Results from a Lesion of the Lateral Caudal Medulla
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In the Rostral Medulla, the Facial and Cochlear Nuclei Appear as Nuclei Related to Visceral Function Fade In the Rostral Medulla, the Facial and Cochlear Nuclei Appear as Nuclei Related to Visceral Function Fade
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The Basis Pontis and the Middle Cerebellar Peduncles Mark the Pons The Basis Pontis and the Middle Cerebellar Peduncles Mark the Pons
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The Fourth Ventricle Greatly Narrows in Rostral Pons The Fourth Ventricle Greatly Narrows in Rostral Pons
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The Cerebral Aqueduct and Emergence of the Trochlear Nerve Roots Mark the Pontomesencephalic Junction The Cerebral Aqueduct and Emergence of the Trochlear Nerve Roots Mark the Pontomesencephalic Junction
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The Caudal Midbrain Is Marked by the Inferior Colliculus and Decussation of the Superior Cerebellar Peduncles The Caudal Midbrain Is Marked by the Inferior Colliculus and Decussation of the Superior Cerebellar Peduncles
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Rostral Midbrain Is Marked by the Oculomotor Nucleus, Superior Colliculus, and Red Nucleus Rostral Midbrain Is Marked by the Oculomotor Nucleus, Superior Colliculus, and Red Nucleus
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The Posterior Commissure Marks the Mesodiencephalic Junction The Posterior Commissure Marks the Mesodiencephalic Junction
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The Brainstem Is the Jack-of-All-Trades of the Nervous System The Brainstem Is the Jack-of-All-Trades of the Nervous System
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Additional Reading Additional Reading
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Cite
Abstract
The role of the brainstem in life is detailed from both medical and legal points of view. This chapter describes how the brainstem divides up the fundamental processes of human life, with the most automatic and basic ones supported most caudally and progressively more expressive functions depending on more rostral brainstem regions. The text then steps through the internal anatomy of the brainstem with a focus on cranial nerve nuclei. The location of the three long tracts is followed for the length of the brainstem, and the course of the corticobulbar tract is presented. A primer on the anatomy of the cerebellum is capped by introducing ataxia, the classic symptom stemming from ipsilateral cerebellar damage.
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