II. Definition
- Meninges
- Membranous lining (3 layers, dura, arachnoid, pia) of the brain and spinal cord
III. Images
IV. Anatomy: Meningeal Layers
-
General
- Mnemonic: PAD
- Pia Mater (inner layer, adjacent to brain)
- Inner layer of the Meninges (adjacent to the brain)
- Vascular layer (contains the major intracranial arteries including the Circle of Willis)
- Arachnoid Mater
- Connective tissue space between the dura and the pia
- Subarachnoid space separates the arachnoid from the pia
- Contains cerebrospinal fluid
- Subarachnoid Hemorrhage occurs in this space
- Dura Mater (outer layer, adjacent to skull)
- Thick, durable, outer layer of the Meninges (adjacent to the skull)
- Composed of two layers of connective tissue between which run cerebral veins known as sinuses
- Forms two additional barriers between intracranial components
- Falx Cerebri (divides the Cerebral Hemispheres)
- Tentorium cerebelli (divides the Cerebrum from the Cerebellum)
- Pathophysiology
- Subdural Hemorrhage occurs when veins bridging the brain and dural sinuses rupture
- Epidural Hemorrhage occurs when the middle meningeal artery ruptures (between the dura and skull)
V. References
- Goldberg (2014) Clinical Neuroanatomy, Medmaster, p. 6-15
- Netter (1997) Atlas Human Anatomy, ICON Learning, p. 94
Images: Related links to external sites (from Bing)
Related Studies
| 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 |
| Russian | PAUTINNAIA MOZGOVAIA OBOLOCHKA, ПАУТИННАЯ МОЗГОВАЯ ОБОЛОЧКА |
| Croatian | ARAHNOIDEJA, PAUČNICA |
| 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 |
Ontology: 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:http://www.nlm.nih.gov/mesh/MBrowser.html |
| 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 |
| HL7 | DUR |
| 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 |
| Russian | MOZGOVAIA OBOLOCHKA TVERDAIA, PAKHIMENINKS, МОЗГОВАЯ ОБОЛОЧКА ТВЕРДАЯ, ПАХИМЕНИНКС |
| Portuguese | Dura-Máter |
| Croatian | DURA MATER |
| 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 |
Ontology: 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 |
| HL7 | MPB |
| 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 |
| Russian | MOZGOVYE OBOLOCHKI, МОЗГОВЫЕ ОБОЛОЧКИ |
| 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 |
Ontology: 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 |
| Russian | MOZGOVAIA OBOLOCHKA MIAGKAIA, MOZGOVAIA OBOLOCHKA SOSUDISTAIA, МОЗГОВАЯ ОБОЛОЧКА МЯГКАЯ, МОЗГОВАЯ ОБОЛОЧКА СОСУДИСТАЯ |
| 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 |
