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Summary Brainstem High Yield Notes

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37 pages
2023/2024 Written for academic year
Institution Nova Southeastern University
Course BMHS 5250 (NEUROSCIENCE)
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Brainstem: The Vital Lifeline of the Nervous System The brainstem

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PROPERTY OF TAHEYA ASAD DO NOT COPY



TOPIC


Neuro 2
ORGANIZATION OF BRAIN STEM
Brain stem consists of the Midbrain, Pons, Medulla Oblongata

Midbrain Features
• Tectum
Quadrageminal plate
§ Superior Colliculi
§ Inferior Colliiculi
• Cerebral Aquaduct
• Tegmentum
§ Red nucleus
§ Reticular formation
• Substania Niagra
• Cerebral Peduncles
§ Corticospinal tract
• Spinothalamic tract
• Dorsal Column Leminiscal Tract
• Cranial Nerves 3 and 4


ANTERIOR VIEW OF BRAINSTEM

,PROPERTY OF TAHEYA ASAD DO NOT COPY




BRAIN STEMà SAGITTAL SECTION
POSTERIOR VIEW OF BRAINSTEM




3 major parts: tectum. Tegmentum, and crus cerebri

OVERVIEW OF STRUCTURES

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BRAIN STEM: MIDBRAIN
MAIN landmarks of midbrain are the red nucleus, superior colliculi and oculomotor nucleus
MIDBRAIN

Most rostral part (toward head) of brainstem
Rostral to pons
Means middle of the brain aka “mesencephalon”


TECTUM
“latin for roof”
Posterior region of midbrain
Dorsal (posterior) to the cerebral aqueduct

The tectum houses 4 rounded prominences called collectively the quadrigeminal plate , these prominences are called
the colliculi, these colliculi sit inferior to the pineal gland. There is a superior colliculi and inferior colliculi.

, PROPERTY OF TAHEYA ASAD DO NOT COPY




CA




When you take a cross section of the above images, thru rostral part of mid brain at the level of the superior
colliculi, this is what you see




MIDBRAIN@ LEVEL OF SUPERIOR COLLICULI
Fxn: preliminary visual processing: conjugate vertical gaze center
CONTENTS at this level
Connected book
image
Douglas J. Gould, James D. Fix BRS Neuroanatomy
Publisher: 2013 ISBN: 9781469829968 Edition: Unknown

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