Cerebral aqueduct

Cerebral aqueduct
Brain: Cerebral aqueduct
Cn3nucleus.png
Section through superior colliculus showing path of oculomotor nerve.
Gray736.png
Drawing of a cast of the ventricular cavities, viewed from the side.
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 in the mesencephalon, which is between the pons and cerebellum.

Contents

Development

The cerebral aqueduct, similarly to other parts of the ventricular system of the brain, develops from the central canal of the neural tube. Specifically, the duct originates from the portion of the neural tube that is present in the developing mesencephalon, hence the name "mesencephalic duct." [1]

Pathology

A blockage in this duct is a cause of hydrocephalus.

See also

References

  1. ^ Le, Tao; Bhushan, Vikas; Vasan, Neil (2010). First Aid for the USMLE Step 1: 2010 20th Anniversary Edition. USA: The McGraw-Hill Companies, Inc.. pp. 126. ISBN 978-0-07-163340-6. 

External links

Additional images

  • Transverse section through mid-brain; number 2 indicates the cerebral aqueduct.

  • Transverse section of mid-brain at level of inferior colliculi.

  • Transverse section of mid-brain at level of superior colliculi.

  • MRI section of mid-brain.

  • Median sagittal section of brain.

  • Scheme showing relations of the ventricles to the surface of the brain.

v · d · eHuman brain: mesencephalon (midbrain) (TA A14.1.06, GA 9.800)
Tectum
(Dorsal)
Surface
White: Sensory/ascending
White: Motor/descending
Peduncle
(Ventral)
White: Sensory/ascending
lemnisci (Medial, Lateral) · Ascending MLF (Vestibulo-oculomotor fibers) · Spinothalamic tract · Anterior trigeminothalamic tract · Dentatothalamic tract
White: Motor/descending
Grey: other
Cerebral aqueduct
Base
White: Motor/descending
Surface

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)

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Look at other dictionaries:

  • cerebral aqueduct — n AQUEDUCT OF SYLVIUS * * * (aqueduct of Sylvius) the narrow channel, containing cerebrospinal fluid, that connects the third and fourth ventricle of the brain. * * * aqueductus mesencephali …   Medical dictionary

  • cerebral aqueduct — aqueduct of Sylvius the narrow channel, containing cerebrospinal fluid, that connects the third and fourth ventricles of the brain …   The new mediacal dictionary

  • cerebral aqueduct — noun The channel in the brain which connects the third ventricle to the fourth ventricle. Also called the aqueduct of sylvius. It is surrounded by the periaqueductal gray …   Wiktionary

  • cerebral aqueduct — noun a canal connecting the third and fourth ventricles • Syn: ↑Sylvian aqueduct, ↑aqueductus cerebri • Hypernyms: ↑duct, ↑epithelial duct, ↑canal, ↑channel …   Useful english dictionary

  • aqueduct of Sylvius — cerebral aqueduct …   The new mediacal dictionary

  • Aqueduct of Sylvius — A canal that communicates between the third and fourth ventricles in a system of four communicating cavities within the brain that are continuous with the central canal of the spinal cord. The four ventricles consist of the two lateral ventricles …   Medical dictionary

  • aqueduct — A conduit or canal. SYN: aqueductus. [L. aquaeductus] cerebral a. an ependyma lined canal in the mesencephalon about 20 mm long, connecting the third to the fourth ventricle. SYN: aqueductus mesencephali [TA], aqueductus cerebri, a. of cerebrum,… …   Medical dictionary

  • Aqueduct (disambiguation) — An aqueduct is *an artificial (man made) channel that is constructed to convey water from one location to another. *a bridge that holds a water channel either for irrigation or transport *a channel in the body that carries a natural body fluid,… …   Wikipedia

  • Cerebral peduncle — Brain: Cerebral peduncle Superficial dissection of brain stem. Ventral view. ( Cerebral peduncle visible in red at center right.) …   Wikipedia

  • Cerebral crus — Brain: Cerebral crus Section through midbrain showing label for cerebral crus at lower left. Latin crus cerebri Gray s subject …   Wikipedia

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