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  2. Fourth ventricle - Wikipedia

    en.wikipedia.org/wiki/Fourth_ventricle

    Fourth ventricle location shown in red (E), pons (B); the floor of the ventricle is to the right, the roof to the left. The fourth ventricle has a roof at its upper (posterior) surface and a floor at its lower (anterior) surface, and side walls formed by the cerebellar peduncles (nerve bundles joining the structure on the posterior side of the ventricle to the structures on the anterior side).

  3. Ventricular system - Wikipedia

    en.wikipedia.org/wiki/Ventricular_system

    The ventricular system is continuous with the central canal of the spinal cord from the fourth ventricle, [3] allowing for the flow of CSF to circulate. [ 3 ] [ 4 ] All of the ventricular system and the central canal of the spinal cord are lined with ependyma , a specialised form of epithelium connected by tight junctions that make up the blood ...

  4. Rhomboid fossa - Wikipedia

    en.wikipedia.org/wiki/Rhomboid_fossa

    Its anterior wall, formed by the back of the pons and the medulla oblongata, constitutes the floor of the fourth ventricle. It is covered by a thin layer of grey matter continuous with that of the spinal cord; superficial to this is a thin lamina of neuroglia which constitutes the ependyma of the ventricle and supports a layer of ciliated ...

  5. Median aperture - Wikipedia

    en.wikipedia.org/wiki/Median_aperture

    The median aperture (median aperture of fourth ventricle or foramen of Magendie) is an opening at the caudal portion of the roof of the fourth ventricle. [1] It allows the flow of cerebrospinal fluid (CSF) from the fourth ventricle into the cisterna magna. [2] [3] The other openings of the fourth ventricle are the lateral apertures - one on ...

  6. Area postrema - Wikipedia

    en.wikipedia.org/wiki/Area_postrema

    [1] [5] The vagal trigone overlies the dorsal vagal nucleus and is situated on the caudal end of the rhomboid fossa or 'floor' of the fourth ventricle. The area postrema is situated just before the obex, the inferior apex of the caudal ventricular floor. Both the funiculus separans and area postrema have a similar thick ependyma-containing ...

  7. Tela choroidea - Wikipedia

    en.wikipedia.org/wiki/Tela_choroidea

    The tela choroidea of the fourth ventricle (also known as the triangular lamella) [8] is a double layer of pia mater and ependyma, between the cerebellum and the lower part of the roof of the fourth ventricle. The two layers are continuous with each other in front, and are mostly adherent throughout.

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  9. History of the location of the soul - Wikipedia

    en.wikipedia.org/wiki/History_of_the_location_of...

    Of particular importance to the location of the soul was the 4th ventricle of the brain. Herophilus observed that there existed two types of nerves, those that functioned in motor activity and those that take in sensory information.