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Cerebral Ventricles |2778|
Cerebral Ventricles Subsets
Lateral Ventricles
Third Ventricle
Fourth Ventricle
Choroid Plexus
Cerebral Aqueduct
Ependyma
See Also ↔
 
 
“Cerebral Ventricles (Ventricular System)”  
734-200 Ventricles

Cerebral Ventricles

  In our body's brain and continuous with the central spinal canal, the Cerebral Ventricles (Ventricular System) are a set of structures containing cerebrospinal fluid (CSF) in the brain and the connecting foraminae.

Ventricles and Cerebrospinal Fluid

  Ventricles is a series of interconnected, fluid-filled cavities are found within the brain. These cavities are the ventricles of the brain, and the fluid is cerebrospinal fluid (CSF).

Ventricular System Components

  In our body's, Brain the <Ventricular System comprises four cerebral ventricles: the paired lateral ventricles (right and left lateral ventricles), and the midline third ventricle (ventriculus tertius) and the fourth ventricle, each containing a CSF producing choroid plexus. *
[2791]
“Lateral Ventricles”  
739-200   In our body's brain, the paired Lateral Ventricles, located within the cerebrum are two of the four connected fluid-filled cavities comprising the ventricular system within the brain.
  In our body, the two Lateral Ventricles are relatively large and C-shaped, roughly wrapping around the dorsal aspects of the basal ganglia, each having three horns that project into the lobe. **
[3493]
“Third Ventricle (Ventriculus tertius)”  
723 - Third Ventricle

Third Ventricle

  In our body's, brain the Third Ventricle (Ventriculus tertius) in the ventricular system is one of four connected fluid-filled cavities comprising the ventricular system within the brain.
  In our body's, brain the Third Ventricle (Ventriculus tertius) in the ventricular system is a narrow median cleft, inferior to the corpus callosum, between the left and right thalamus, and is filled with cerebrospinal fluid (CSF).
  In our body, the Third Ventricle (Ventriculus tertius) communicates with the fourth ventricle via the cerebral aqueduct (aqueduct of sylvius). **
[4730]
“Fourth Ventricle (4th Ventricle)”  
768 - Fourth Ventricle

Fourth Ventricle

  In our body's brain, the Fourth Ventricle (4th Ventricle) is an irregularly shaped cavity, one of four connected fluid-filled cavities comprising the ventricular system within the brain, located within the pons or in the upper part of the medulla oblongata.
  In our body, the Fourth Ventricle communicates with the third ventricle via the cerebral aqueduct (aqueduct of sylvius). **
[4733]
“Choroid Plexuses”  

Choroid Plexus

  In our body's brain, the Choroid Plexus, a structure in the each of the four cerebral ventricles, consisting of modified ependymal cells, that regulates part of the production and composition of the cerebrospinal fluid (CSF) and is present in all components of the ventricular system except for the cerebral aqueduct.
  In our body, the choroid plexus is a complex epithelial-endothelial convolute composed of an epithelium, stroma, and vascular supply, the stroma contains fibroblasts, inflammatory cells, and a rich extracellular matrix.
There are 4 segments of the choroid plexus, each occupying either the lateral, third, or fourth ventricles. **
[4734]
“Cerebral Aqueduct (Aqueduct of Sylvius)”  

Cerebral Aqueduct

  In our body's brain, Cerebral Aqueduct (Aqueduct of Sylvius) is a narrow channel in the mesencephalon, filled with cerebrospinal fluid (CSF), that connects the third ventricle and the fourth ventricle. **
[4738]
“Septum Pellucidum”  
  In the body's brain, Septum Pellucidum, part of the limbic system, is a triangular double membrane separating the anterior horns of the lateral ventricles
  In the body's brain, Septum Pellucidum is situated in the median plane and bounded by the corpus callosum and the body and columns of the fornix. **
[5401]
“Virchow-Robin Spaces”  

Virchow-Robin Space

  In our body, Virchow-Robin Spaces is a histologically-defined perivascular space, built upon endothelial, pial, and glial cell layers, each of them delineated by distinct basement membranes containing perforating arteries, surrounding blood vessels (arterioles and venules) penetrating the subarachnoid space into the brain tissues.
  In our body, Virchow-Robin spaces are filled with CSF, and bordered by a leptomeningeal cell layer on both the inner wall facing the vessel and on the outer wall facing perivascular astrocytic endfeet, which create the outer wall of the perivascular space, resembling a donut-shaped tunnel surrounding the vasculature, then as the penetrating arterioles narrow deeper down in the brain parenchyma, the Virchow-Robin spaces become continuous with the basal lamina. **
[4627]
References & Citations:
1. Brinker T. et al "A new look at cerebrospinal fluid circulation"   Fluids Barriers CNS. 2014 May 1;11:10  
2. Jessen NA. et al "The Glymphatic System: A Beginner's Guide"   Neurochem Res. 2015 Dec;40(12):2583-99  
3. Ishikawa M. et al "Three-dimensional observation of Virchow-Robin spaces in the basal ganglia and white matter and their relevance to idiopathic normal pressure hydrocephalus"   Fluids Barriers CNS. 2015 Jun 26;12(1):15  
4. Safaee M. et al "Choroid plexus papillomas: advances in molecular biology and understanding of tumorigenesis"   Neuro Oncol. 2013 Mar;15(3):255-67  
5. Cherasse Y. et al "The Leptomeninges Produce Prostaglandin D2 Involved in Sleep Regulation in Mice"   Front Cell Neurosci 2018 Oct 11;12:357  
 
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