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Further detail
The fourth ventricle lies anterior to the cerebellum but posterior to the pons and medulla.
1. Which anatomical continuity correctly describes the fourth ventricle?
2. What forms the superior part of the fourth ventricle roof?
3. Where is the fourth ventricle located in relation to the cerebellum, pons, and medulla oblongata?
Where is the fourth ventricle located relative to the cerebellum and pons?
It is anterior to the cerebellum and posterior to the pons.
What forms the caudal and cranial parts of the fourth ventricle's lateral boundaries?
The caudal part is formed by the inferior cerebellar peduncle and the cranial part by the superior cerebellar peduncle.
What forms the superior part of the fourth ventricle roof?
The medial borders of the superior cerebellar peduncles and the superior medullary velum.
How does cerebrospinal fluid exit the fourth ventricle?
Through one median aperture (foramen of Magendie) and two lateral apertures (foramina of Luschka).
Fourth ventricle location and boundaries
Anterior to cerebellum, posterior to pons/medulla.
Roof of fourth ventricle composition
Formed by superior medullary velum and peduncles.
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