dura mater


dura mater
Pachymeninx (as distinguished from leptomeninx, the combined pia mater and arachnoid); a tough, fibrous membrane forming the outer covering of the central nervous system. SYN: dura [TA], pachymeninx [TA]. [L. hard mother, mistransl. of Ar. umm al-jafiyah, tough protector or covering]
- d. of brain SYN: cranial d..
- cranial d. [TA] the intracranial d., consisting of two layers: the outer periosteal layer that normally always adheres to the periosteum of the bones of the cranial vault; and the inner meningeal layer that in most places is fused with the outer. The two layers separate to accommodate meningeal vessels and large venous (dural) sinuses. The meningeal layer is also involved in the formation of the various dural folds, such as the falx cerebri and tentorium cerebelli and is comparable to and continuous with the dural mater of the spinal cord. The cranial epidural space is then an artifactual space between the bone and the combined periosteum/periosteal layer of the d. realized only as a result of pathologic or traumatic processes and is neither continuous with or comparable to the vertebral epidural space. SYN: dura mater cranialis [TA], d. encephali, cerebral part of d., d. of brain.
- d. encephali cranial d..
- spinal d. [TA] single-layered strong membrane, comparable to and continuous with (at foramen magnum) the meningeal layer of the intracranial d. of the brain. It does not (in contrast to the d. of brain) adhere to the enveloping bony structures (vertebrae) or their periosteum, being separated from the latter by a considerable space, the vertebral epidural space—a true space containing the internal vertebral venous plexus embedded in a matrix of epidural fat. SYN: d. spinalis [TA], d. of spinal cord, endorrhachis, theca vertebralis.
- d. of spinal cord SYN: spinal d..
- d. spinalis [TA] SYN: spinal d..

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du·ra ma·ter 'd(y)u̇r-ə-.māt-ər, -.mät- n the tough fibrous membrane lined with endothelium on the inner surface that envelops the brain and spinal cord external to the arachnoid and pia mater, that in the cranium closely lines the bone, does not dip down between the convolutions, and contains numerous blood vessels and venous sinuses, and that in the spinal cord is separated from the bone by a considerable space and contains no venous sinuses called also dura

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du·ra ma·ter (dooґrə maґtər) [L. “hard mother”] [TA] the outermost, toughest, and most fibrous of the three membranes (meninges) covering the brain and spinal cord; called also pachymeninx.

Medical dictionary. 2011.

Look at other dictionaries:

  • Dura mater — Meninges of the CNS Gray s subject #193 872 MeSH …   Wikipedia

  • DURA MATER — DURA MATER, твердая мозговая оболочка, служит одновременно внутренней надкостницей черепных костей и позвоночника и внешней оболочкой голов юго и с ишюго мозга. В черепе внутренняя поверхность D. т. соединяется с остальными оболочками посредством …   Большая медицинская энциклопедия

  • dura-máter — s. f. [Anatomia] Membrana exterior que envolve a substância encefálica e a medular. • Plural: duras máteres.   ‣ Etimologia: latim tardio dura mater, mãe dura …   Dicionário da Língua Portuguesa

  • Dura mater — Du ra ma ter [L., lit., hard mother. The membrane was called mater, or mother, because it was formerly thought to give rise to every membrane of the body.] (Anat.) The tough, fibrous membrane, which lines the cavity of the skull and spinal column …   The Collaborative International Dictionary of English

  • dura mater — tough outer membrane surrounding the brain, c.1400, from M.L. dura mater cerebri, lit. hard mother of the brain, a loan translation of Arabic umm al dimagh as safiqa, lit. thick mother of the brain. In Arabic, the words father, mother, and son… …   Etymology dictionary

  • dura mater — (izg. dȗra mȃter) ž DEFINICIJA anat. vanjska čvrsta vezivna ovojnica oko mozga i kralježnične moždine ETIMOLOGIJA srlat.: tvrda majka …   Hrvatski jezični portal

  • Dura mater — (Anat.), harte Hirnhaut …   Pierer's Universal-Lexikon

  • Dura mater — (lat.), die äußerste Haut um das Gehirn (s. d.) und Rückenmark (s. d.) …   Meyers Großes Konversations-Lexikon

  • Dura mater — (lat., »harte Mutter«), die harte, sehnige Haut, die das Gehirn und Rückenmark umkleidet …   Kleines Konversations-Lexikon

  • Dura mater — Dura mater, lat. (rauhe Mutter), die harte Hirnhaut …   Herders Conversations-Lexikon

  • Dura mater — Dura mater, harte Hirnhaut ⇒ Hirnhäute …   Deutsch wörterbuch der biologie


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