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What structures are visible in the image? Where can these structures be found?
- - In red the cerebral aquaduct
- - In purple the cerebral peduncles
- - These structures are found inside the midbrain
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What structures are visible in the image? Where are these structures located?
- - In red the oculomotor nerve (III)
- - In yellow the oculomotor nucleus
- - These structures can be found in the midbrain
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What structure is seen in blue? What is this structure a part of? What kind of nucleus is it? Is there another nucleus related to the structure? Where are they located?
- - Edinger-Westphal nucleus
- - Part of the oculomotor nerve
- - It is a sympathetic motor component
- - There is also a somatic motor nucleus, the oculomotor nucleus, which is a component of the oculomotor nerve.
- - They can be found in the midbrain.
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What structure is seen in red? Where can it be found?
- - The red nucleus
- - Midbrain
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What structure is located between the red nucleus and the cerebral peduncles? What does this structure consist of?
- - Substantia nigra
- - Consist of two nuclei
- 1. Compact layer, the dopamine neurons, that project to the fore brain.
- 2. Inferior part to the substantia nigra.
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What structure can be seen here? Where is its location?
- - Superior colliculi
- - Midbrain
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What structure is seen here? What characterizes this structure? Where is this structure located?
- - Pariaqueductal grey
- - It is a gray matter around the cerebral aquaduct
- - Midbrain
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What structures are seen here? Where are these structure present?
- 1. Inferior colliculus
- 2. Trochlear nucleus
- 3. Pariaquaductal gray
- 4. Pontine nuclei
- 5. Pontocerebellar fibers
- - In the lower part of the midbrain
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Which nuclei give rise to axons called the pontocerebellar fibers?
Pontine nuclei
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What structures are seen here? Where are they located?
- 1. Pontocerebellar fibers
- 2. Middle cerebellar peduncles
- 3. Chief sensory nucleus of the trigeminal complex
- 4. Trigeminal motor nucleus
- 5. Trigeminal nerve roots (connected to trigeminal motor nucleus)
- 6. Cerebral aquaduct (opened up into large fourth ventricle)
- 7. Superior cerebellar peduncle
- - Located in the pons
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Where do the peduncles leave the cerebellum to reach motor circuits in the thalamus?
In the superior cerebellar peduncle
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What is the corticobulbar corticoponline?
A basal region where many axons have defusiculated (vertakt).
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Where does recondensation takes place of axons into a tight bundle after defusiculation in the corticobulbar corticoponline?
On the other side of the pons as an important pathway called the medullary pyramid, which contains among other axons, the cortico spinal tract.
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Which structures can be seen in the image. Where are these structures located?
- 1. Spinal nucleus of the trigeminal complex
- 2. Spinal trigeminal tract
- 3. Facial motor nucleus
- 4. Facial motor axons that loop around the abducens nucleus
- 5. Abducens nerve
- 6. Vestibular cochlear nuclear complex
- - In the cottle part of the pons
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Which structures are seen here? What are these structures part of?
- 1. Spinal vestibular nucleus
- 2. Grey matter part of the cochlear nuclear complex
- 3. Inferior cerebellar peduncle
- 4. Inferior olivary nucleus
- 5. Spinal nucleus of the trigeminal complex
- 6. Hypoglossal nucleus
- 7. Dorsal motor nucleus
- 8. Nucleus of the solitary tract
- 9. Solitary tract
- 10. Medial lemniscus
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Name the next structures and their location.
- 1. Dorsal column nuclei, gracile tract
- 2. Dorsal column nuclei, gracile nucleus
- The dorsal column nuclei grow out axons that form the medial meniscus.
- 3. Lateral tract, cuneate tract
- 4.Cuneate nucleus
- 5. Internal arcuate fibers .
- The axons of the medial meniscus sweep around the tegmentum of the brainstem, which is this structure and form the medial lemniscus
- 6. Medial lemniscus
- 7. Decussation of the medullary pyramids
- 8. Pyramidal decussation
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What are the mammilary bodies part of?
The hypothalamus
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