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20 Cards in this Set
- Front
- Back
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The brainstem contains cranial nerve nuclei for which cranial nerves?
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CN 3 through CN 7
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The brainstem contains reflex centers for what vital functions?
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respiration and cardiovascular control and consciousness
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The brainstem is divided into what parts?
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medulla oblongata, pons, and midbrain
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List the 5 levels (horizontal sections) at which the internal structure of the medulla is studied.
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1. Level of motor decussation (level of decussation of the pyramids)
2. Level of dorsal column nuclei 3. Level of sensory decussation (level of obex) 4. Level of inferior olives 5. Level of open medulla |
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anterior external arcuate fibers
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a few nerve fibers that emerge from the anterior median fissure above the decussation of the pyramids and pass laterally over the surface of the medulla oblongata to enter the cerebrum
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inferior cerebellar peduncles
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connect the medulla to the cerebellum
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Which nuclei are present within the level of open medulla?
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lateral vestibular nucleus
cochlear nuclei |
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What is the function of the medial lemniscus?
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to convey sensory information to the thalamus
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The cerebellum is attached to the brainstem by...?
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the 3 peduncles
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superior cerebellar peduncle
connects? |
cerebellum to midbrain
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middle cerebellar peduncle
connects? |
cerebellum to pons
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inferior cerebellar peduncle
connects? |
cerebellum to medulla oblongata
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The anterior surface of the pons is remarkable for many visible __________ fibers, within which is the ______________.
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transverse; basilar groove
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The middle cerebellar peduncles are located on which surface of the pons?
A. anterior B. lateral C. posterior |
B. lateral
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The superior cerebellar peduncle forms the ______________ limit of the pons.
A. anterior B. posterior C. medial D. posterolateral |
D. posterolateral
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The medial longitudinal fasiculus is the main pathway that connects the _______ nuclei with the nuclei controlling the extraocular muscles.
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vestibular and cochlear
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The function of the olivary nuclei is associated with?
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voluntary movement
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What nuclei are contained within the vestibulonuclear complex?
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medial vestibular nucleus
inferior vestibular nucleus lateral vestibular nucleus superior vestibular nucleus |
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What are the cochlear nuclei?
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anterior cochlear nucleus
posterior cochlear nucleus |
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The posterior surface of the medulla makes part of the floor of what ventricle?
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4th ventricle
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