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Encyclopedia > Inferior medullary velum
Brain: Inferior medullary velum
Scheme of roof of fourth ventricle. The arrow is in the foramen of Majendie.
1: inferior medullary velum
2: Choroid plexus
3: Cerebellomedullary cistern of subarachnoid cavity
4: Central canal
5: Corpora quadrigemina
6: Cerebral peduncle
7: superior medullary velum
8: Ependymal lining of ventricle
9: Pontine cistern of subarachnoid cavity
Latin velum medullare inferius
NeuroNames hier-694
Dorlands/Elsevier v_05/12849291

The inferior medullary velum (posterior medullary velum) is a thin layer of white substance, prolonged from the white center of the cerebellum, above and on either side of the nodule; it forms a part of the roof of the fourth ventricle. The fourth ventricle is one of the four connected fluid-filled cavities within the human brain. ... The choroid plexus is the area on the ventricles of the brain where cerebrospinal fluid (CSF) is produced. ... Cross-section through cervical spinal cord. ... Corpora quadrigemina (Latin: four twins) is the collective name given to both pairs of the inferior and superior colliculi. ... The cerebral peduncle, by most classifications, is everything in the mesencephalon except the tectum. ... Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... NeuroNames is a system of nomenclature for the brain and related structures. ... Elseviers logo. ... The cerebellum (Latin: little brain) is a region of the brain that plays an important role in the integration of sensory perception and motor output. ... The fourth ventricle is one of the four connected fluid-filled cavities within the human brain. ...


Somewhat semilunar in shape, its convex edge is continuous with the white substance of the cerebellum, while its thin concave margin is apparently free; in reality, however, it is continuous with the epithelium of the ventricle, which is prolonged downward from the posterior medullary velum to the ligulæ.


This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy after Henry Gray, is an anatomy textbook widely regarded as a classic work on human anatomy. ...

The apneustic center of the lower pons appears to promote inspiration by stimulation of the I neurons in the medulla oblongata providing a constant stimulus. ... The pneumotaxic center of the upper pons antagonises the apneustic centre. ... The metencephalon is a developmental categorization of portions of the central nervous system. ... The cerebellum (Latin: little brain) is a region of the brain that plays an important role in the integration of sensory perception and motor output. ... Part of the structure of animal brains, the cerebellar vermis is a narrow, wormlike structure between the hemispheres of the cerebellum. ... The flocculus is a small lobe of the cerebellum at the posterior border of the middle cerebellar peduncle anterior to the biventer lobule. ... The arbor vitae (Latin for Tree of Life) is the cerebellar white matter, so called for its branched, tree-like appearance. ... The fourth ventricle is one of the four connected fluid-filled cavities within the human brain. ... IrOBEX (or just OBEX) is a communications protocol that facilitates the exchange of binary objects between devices. ... The Median Aperture of the brain (apertura medialis ventriculi quarte) or Foramen of Magendie is an opening in the hollow nerve tube, connecting the 4th ventricle of the brain with the subarachnoid space The median aperture along with the paired lateral apertures (foramina of Luschka) are the primary routes for...

 
 

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