Intro to Neurology (copy)

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5 Terms

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Brainstem

Contains:
- Midbrain
- Pons
- Medulla
-Nuclei of the cranial nerves (CN III-XII)

<p><em>Contains</em>:<br>- Midbrain<br>- Pons<br>- Medulla<br>-Nuclei of the cranial nerves (CN III-XII)</p>

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Midbrain

Which part of the brainstem contains nuclei of CN III (oculomotor) & CN IV (trochlear), cerebral peduncles, and substantia nigra?
Tegmentum: communicates with cerebellum by cerebellar peduncles
Tectum: dorsal aspect, contains corpora quadrigemina (important for vision & hearing)

<p>Which part of the brainstem contains nuclei of <strong>CN III (oculomotor)</strong> &<strong> CN IV (trochlear), cerebral peduncles, and substantia nigra?</strong><br><em>Tegmentum</em>: communicates with cerebellum by <strong>cerebellar peduncles</strong><br><em>Tectum</em>: dorsal aspect, contains corpora quadrigemina (important for vision & hearing)</p>

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Cerebral Peduncles

Run along the ventral aspect of midbrain, contain large sensory and motor tracts
→connects brainstem to thalamus (and cerebrum), aka crus cerebri

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Pontine Nuclei

Motor nuclei of the pons (brainstem) that communicate with cerebellum to coordinate movement, modulate breathing (smooths out respiratory rate set by medulla)?

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Ventral Horn

• Anterior; gray matter
• Somatic motor neurons (efferent; CNS → PNS)