Neurology Book



Aka: Meninges, Dura Mater, Arachnoid Mater, Pia Mater
  1. Definition
    1. Meninges
      1. Membranous lining (3 layers, dura, arachnoid, pia) of the brain and spinal cord
  2. Images
    1. neuromeninges.png
  3. Anatomy: Meningeal Layers
    1. General
      1. Mnemonic: PAD
    2. Pia Mater (inner layer, adjacent to brain)
      1. Inner layer of the Meninges (adjacent to the brain)
      2. Vascular layer (contains the major intracranial arteries including the Circle of Willis)
    3. Arachnoid Mater
      1. Connective tissue space between the dura and the pia
      2. Subarachnoid space separates the arachnoid from the pia
        1. Contains cerebrospinal fluid
        2. Subarachnoid Hemorrhage occurs in this space
    4. Dura Mater (outer layer, adjacent to skull)
      1. Thick, durable, outer layer of the Meninges (adjacent to the skull)
      2. Composed of two layers of connective tissue between which run cerebral veins known as sinuses
      3. Forms two additional barriers between intracranial components
        1. Falx Cerebri (divides the Cerebral Hemispheres)
        2. Tentorium cerebelli (divides the Cerebrum from the Cerebellum)
      4. Pathophysiology
        1. Subdural Hemorrhage occurs when veins bridging the brain and dural sinuses rupture
        2. Epidural Hemorrhage occurs when the middle meningeal artery ruptures (between the dura and skull)
  4. References
    1. Goldberg (2014) Clinical Neuroanatomy, Medmaster, p. 6-15
    2. Netter (1997) Atlas Human Anatomy, ICON Learning, p. 94

Arachnoid mater (C0003707)

Definition (MSH) A delicate membrane enveloping the brain and spinal cord. It lies between the PIA MATER and the DURA MATER. It is separated from the pia mater by the subarachnoid cavity which is filled with CEREBROSPINAL FLUID.
Concepts Body Part, Organ, or Organ Component (T023)
MSH D001099
SnomedCT 75042008
English Arachnoid, Arachnoids, Arachnoidea mater, Arachnoid mater of neuraxis, arachnoids, arachnoid, arachnoid mater, Arachnoidea mater encephali, Arachnoidea, Maters, Arachnoid, Arachnoid Maters, Arachnoid Mater, Mater, Arachnoid, Arachnoid structure (body structure), Arachnoid structure, Arachnoid, NOS, Arachnoid mater
Swedish Spindelvävshinna
Czech arachnoidea
Finnish Lukinkalvo
Latvian Tīklainais smadzeņu apvalks, Smadzeņu apvalks, tīklainais
Polish Pajęczynówka
Norwegian Arachnoidea, Spindelvevshinne
Portuguese Aracnoide-Máter, Aracnoide
Spanish aracnoides, estructura de la aracnoides (estructura corporal), estructura de la aracnoides, Aracnoides
French Arachnoïde
German Arachnoidea
Italian Aracnoide
Dutch Arachnoidea, Spinnenwebvlies
Derived from the NIH UMLS (Unified Medical Language System)

Dura Mater (C0013313)

Definition (NCI) The outermost, toughest, and most fibrous of the three membranes (meninges) that surround and protect the brain and spinal cord.
Definition (CSP) outermost and heaviest layer of the meninges covering the brain and spinal cord.
Definition (AOT) see:
Definition (MSH) The outermost of the three MENINGES, a fibrous membrane of connective tissue that covers the brain and the spinal cord.
Concepts Body Part, Organ, or Organ Component (T023)
MSH D004388
SnomedCT 18545000
English Dura Maters, Mater, Dura, Maters, Dura, pachymeninx, Dura mater of neuraxis, mater dura, dura mater, Pachymeninxs, Pachymeninx, Dura mater, Dura mater structure (body structure), Dura mater structure, Dura mater, NOS, Dura Mater, Dura
French Pachyméninge, Dura mater, Dure-mère
Swedish Hård hjärnhinna
Czech dura mater
Finnish Aivojen kovakalvo
Portuguese Dura-Máter
Latvian Smadzeņu apvalks, cietais, Cietais smadzeņu apvalks
Polish Opona twarda
Norwegian Pachymeninx, Den harde hjernehinnen, Pakymeninx, Dura mater, harde hjernehinnen, Dura mater spinalis
Spanish duramadre, estructura de la duramadre (estructura corporal), estructura de la duramadre, paquimeninge, Duramadre
German Dura mater, Hirnhaut, harte
Italian Dura madre
Dutch Dura mater, Hersenvlies, hard
Derived from the NIH UMLS (Unified Medical Language System)

Meninges (C0025285)

Definition (SCTSPA) Las tres membranas que rodean al cerebro y la médula espinal, constituidas por la duramadre, la piamadre y la aracnoides. La piamadre y la aracnoides juntas constituyen las leptomeninges
Definition (SNOMEDCT_US) The three membranes that surround the brain and spinal cord, consisting of the dura mater, arachnoid, and pia mater. The pia and arachnoid in combination are referred to as the leptomeninges.
Definition (NCI) Any one of three membranes that surround the brain and spinal cord.
Definition (NCI_NCI-GLOSS) The three thin layers of tissue that cover and protect the brain and spinal cord.
Definition (NCI_CDISC) Any one of three membranes that surround the brain and spinal cord. (NCI)
Definition (CSP) three membranes covering of the brain and spinal cord; named the dura mater, pia mater and arachnoid.
Definition (MSH) The three membranes that cover the BRAIN and the SPINAL CORD. They are the dura mater, the arachnoid, and the pia mater.
Concepts Body Part, Organ, or Organ Component (T023)
MSH D008578
SnomedCT 1231004, 363824000
English Meninges, Meninx, Structure of meninges, meninx, brain cover, brain covering, meninge, brain coverings, meninges, MENINGES, Set of meninges, Meninges structure, Central nervous system meninges, Meningeal observable (observable entity), Meningeal observable, Meninges structure (body structure), Meninges, NOS
Swedish Hjärnhinnor
Czech meningy, mozkové pleny
Finnish Aivo- ja selkäydinkalvot
Spanish característica observable de las meninges (entidad observable), meninges (entidad observable), característica observable de las meninges, estructura de la meninges (estructura corporal), estructura de la meninges, meninges del sistema nervioso central, meninges, Meninges
Croatian Not Translated[Meninges]
Latvian Smadzeņu apvalki
Polish Opony mózgowe
Norwegian Hjernehinner, Meninges
French Méninges
German Hirnhäute
Italian Meningi
Dutch Hersenvliezen, Meningen
Portuguese Meninges
Derived from the NIH UMLS (Unified Medical Language System)

Pia Mater (C0031869)

Definition (NCI) The delicate, highly vascular, innermost membrane encasing the brain and spinal cord.
Definition (CSP) innermost layer of the leptomeninges, which adheres to the brain and spinal cord and conforms to all the irregularities on their surfaces.
Definition (MSH) The innermost layer of the three meninges covering the brain and spinal cord. It is the fine vascular membrane that lies under the ARACHNOID and the DURA MATER.
Concepts Body Part, Organ, or Organ Component (T023)
MSH D010841
SnomedCT 23180006
English Mater, Pia, Maters, Pia, Pia Maters, Pia mater of neuraxis, pia mater, Pia mater, Pia mater structure (body structure), Pia mater structure, Pia mater, NOS, Pia Mater
French Pia mater, Pie-mère
Swedish Mjuk hjärnhinna
Czech pia mater
Finnish Pehmeäkalvo
Portuguese Pia-Máter
Latvian Mīkstais smadzeņu apvalks, Smadzeņu apvalks, mīkstais
Polish Opona miękka
Norwegian Pia mater, Pia mater encephali, Årehinne
Spanish estructura de la piamadre (estructura corporal), estructura de la piamadre, piamadre, Piamadre
German Hirnhaut, weiche, Pia mater
Italian Pia madre
Dutch Pia mater
Derived from the NIH UMLS (Unified Medical Language System)

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