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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. 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.

  5. 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]

  6. 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.

  7. File:Meninges-en.svg - Wikipedia

    en.wikipedia.org/wiki/File:Meninges-en.svg

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  8. Human brain - Wikipedia

    en.wikipedia.org/wiki/Human_brain

    The cerebrum, brainstem, cerebellum, and spinal cord are covered by three membranes called meninges. The membranes are the tough dura mater; the middle arachnoid mater and the more delicate inner pia mater. Between the arachnoid mater and the pia mater is the subarachnoid space and subarachnoid cisterns, which contain the cerebrospinal fluid. [11]

  9. Arachnoid trabeculae - Wikipedia

    en.wikipedia.org/wiki/Arachnoid_trabeculae

    Above the subarachnoid space, collagen fibers from the trabeculae are attached to the arachnoid mater, reinforcing it with collagen to withstand fairly strong forces. Below the subarachnoid space, trabecular collagen passes through the pia mater and sub-pial space, and is attached to the basement membrane , beneath which it embeds itself in a ...