Cerebral aqueduct
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| Brain: Cerebral aqueduct | ||
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| Section through superior colliculus showing path of oculomotor nerve. | ||
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| Coronal section through mid-brain. 1. Corpora quadrigemina. 2. Cerebral aqueduct. 3. Central gray stratum. 4. Interpeduncular space. 5. Sulcus lateralis. 6. Substantia nigra. 7. Red nucleus of tegmentum. 8. Oculomotor nerve, with 8’, its nucleus of origin. a. Lemniscus (in blue) with a’ the medial lemniscus and a" the lateral lemniscus. b. Medial longitudinal fasciculus. c. Raphé. d. Temporopontine fibers. e. Portion of medial lemniscus, which runs to the lentiform nucleus and insula. f. Cerebrospinal fibers. g. Frontopontine fibers. |
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| Latin | aqueductus mesencephali (cerebri) | |
| Gray's | subject #188 806 | |
| NeuroNames | hier-500 | |
| MeSH | Cerebral+Aqueduct | |
The mesencephalic duct, also known as the 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.
[edit] See also
[edit] Additional images
 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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