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Cerebral aqueduct
From Wikipedia, the free encyclopedia
(Redirected from Aqueduct of Sylvius)
| Brain: Cerebral aqueduct | ||
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| Section through superior colliculus showing path of oculomotor nerve. | ||
| Latin | aqueductus mesencephali (cerebri) | |
| Gray's | subject #188 806 | |
| NeuroNames | hier-500 | |
| MeSH | Cerebral+Aqueduct | |
The mesencephalic duct, also known as the aqueductus mesencephali, aqueduct of Sylvius or the cerebral aqueduct, contains cerebrospinal fluid (CSF), is within the mesencephalon (or midbrain) and connects the third ventricle in the diencephalon to the fourth ventricle, which is between the pons and cerebellum.
A blockage in this duct is a cause of hydrocephalus.
 Coronal section through mid-brain. |
 Transverse section of mid-brain at level of inferior colliculi. |
 Transverse section of mid-brain at level of superior colliculi. |
 Median sagittal section of brain. |
 Scheme showing relations of the ventricles to the surface of the brain. |
 Drawing of a cast of the ventricular cavities, viewed from the side. |
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| Tectum | Corpora quadrigemina (Inferior colliculi, Superior colliculi) • Subcommissural organ • Pretectum |
| Peduncle tegmentum | Periaqueductal gray (Cerebral aqueduct, Dorsal raphe nucleus) • Ventral tegmentum • Pedunculopontine nucleus • Red nucleus • MLF (riMLF) • lemnisci (Medial, Lateral) • cranial nuclei (III: Oculomotor nucleus, III: Edinger-Westphal nucleus, IV: Trochlear nucleus, V: Mesencephalic) |
| Peduncle base | Substantia nigra • Cerebral crus (Corticospinal tract, Corticobulbar tract, Corticopontine tract/Frontopontine fibers/Temporopontine fibers) |
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