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  2. Pia mater - Wikipedia

    en.wikipedia.org/wiki/Pia_mater

    Pia mater (/ ˈ p aɪ. ə ˈ m eɪ t ər / or / ˈ p iː ə ˈ m ɑː t ər /), [1] often referred to as simply the pia, is the delicate innermost layer of the meninges, the membranes surrounding the brain and spinal cord. Pia mater is medieval Latin meaning "tender mother". [1] The other two meningeal membranes are the dura mater and the ...

  3. Leptomeningeal collateral circulation - Wikipedia

    en.wikipedia.org/wiki/Leptomeningeal_collateral...

    Leptomeningeal collaterals lie within the leptomeninges, the two deep layers of the meninges called the pia mater and the arachnoid mater. [4] Their diameter has been measured at approximately 300 micrometers, [ 5 ] but there is variability between individuals in the size, quantity and location of these vessels, and between either hemisphere ...

  4. Meninges - Wikipedia

    en.wikipedia.org/wiki/Meninges

    In anatomy, the meninges (/ m ə ˈ n ɪ n dʒ iː z /; [1] [2] sg. meninx / ˈ m iː n ɪ ŋ k s, ˈ m ɛ n ɪ ŋ k s /; [3] from Ancient Greek μῆνιγξ (mêninx) 'membrane') [4] are the three membranes that envelop the brain and spinal cord. In mammals, the meninges are the dura mater, the arachnoid mater, and the pia mater.

  5. Tela choroidea - Wikipedia

    en.wikipedia.org/wiki/Tela_choroidea

    The tela choroidea is a very thin part of the loose connective tissue of pia mater overlying and closely adhering to the ependyma. [ 2 ] [ 1 ] It has a rich blood supply. The ependyma and vascular pia mater – the tela choroidea, form regions of minute projections known as a choroid plexus that projects into each ventricle.

  6. Subarachnoid cisterns - Wikipedia

    en.wikipedia.org/wiki/Subarachnoid_cisterns

    Although the pia mater adheres to the surface of the brain, closely following the contours of its gyri and sulci, the arachnoid mater only covers its superficial surface, bridging across the gyri. This leaves wider spaces between the pia and arachnoid and the cavities are known as the subarachnoid cisterns. [citation needed]

  7. List of regions in the human brain - Wikipedia

    en.wikipedia.org/wiki/List_of_regions_in_the...

    Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide ... Dura mater; Arachnoid mater; Pia mater ...

  8. Longitudinal fissure - Wikipedia

    en.wikipedia.org/wiki/Longitudinal_fissure

    All three meninges of the cortex (dura mater, arachnoid mater, pia mater) fold and descend deep down into the longitudinal fissure, physically separating the two hemispheres. Falx cerebri is the name given to the dura mater in-between the two hemispheres, whose significance arises from the fact that it is the outermost layer of the meninges ...

  9. Perivascular space - Wikipedia

    en.wikipedia.org/wiki/Perivascular_space

    The brain pia mater is reflected from the surface of the brain onto the surface of blood vessels in the subarachnoid space. In the brain, perivascular cuffs are regions of leukocyte aggregation in the perivascular spaces, usually found in patients with viral encephalitis. Perivascular spaces vary in dimension according to the type of blood vessel.