tegmentum


tegmentum
1. A covering structure. 2. SYN: mesencephalic t.. [L. covering structure, fr. tego, to cover]
- t. mesencephali [TA] SYN: mesencephalic t..
- mesencephalic t. that major part of the substance of the mesencephalon or midbrain that extends from the substantia nigra to the level of the cerebral aqueduct. SYN: t. mesencephali [TA], t. of midbrain [TA], midbrain t., t. (2).
- midbrain t. SYN: mesencephalic t..
- t. of midbrain [TA] SYN: mesencephalic t..
- t. of pons [TA] SYN: dorsal part of pons.
- t. pontis [TA] SYN: dorsal part of pons.
- t. rhombencephali SYN: rhombencephalic t..
- rhombencephalic t. the portion of the pons continuous with the mesencephalic t.; it consists of reticular formation, tracts, and cranial nerve nuclei, and forms the dorsal part of the pons (pars dorsalis pontis). SYN: t. of rhombencephalon, t. rhombencephali.
- t. of rhombencephalon SYN: rhombencephalic t..

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teg·men·tum teg-'ment-əm n, pl -men·ta -'ment-ə an anatomical covering: TEGMEN esp the part of the ventral midbrain above the substantia nigra formed of longitudinal white fibers with arched transverse fibers and gray matter

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n.
the region of the midbrain below and in front of the cerebral aqueduct. It contains the nuclei of several cranial nerves, the reticular formation, and other ascending and descending nerve pathways linking the forebrain and the spinal cord.

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teg·men·tum (təg-menґtəm) pl. tegmenґta [L.] a covering. 2. t. mesencephali. 3. the dorsal part of each cerebral peduncle; see also t. mesencephali and pedunculus cerebri.

Medical dictionary. 2011.

Look at other dictionaries:

  • Tegmentum — (von lateinisch tegere bedecken, „Decke“, „Haube“ ) bezeichnet: eine Schicht im Bereich des Hirnstamms, siehe Tegmentum (Gehirn) einen Typ der Deckflügel von Insekten, siehe Tegmina eine Hautschicht der Käferschnecken Siehe auch: Tegmen …   Deutsch Wikipedia

  • Tegmentum — Teg*men tum, n.; pl. {Tegmenta}. [L., a covering.] (Anat.) A covering; applied especially to the bundles of longitudinal fibers in the upper part of the crura of the cerebrum. [1913 Webster] …   The Collaborative International Dictionary of English

  • Tegmentum — ⇒ Hirnstamm …   Deutsch wörterbuch der biologie

  • Tegmentum — Infobox Brain Name = PAGENAME Latin = Tegmentum GraySubject = GrayPage = Caption = Transverse section of mid brain at level of superior colliculi. ( Tegmentum visible center right.) Caption2 = Section through superior colliculus showing path of… …   Wikipedia

  • Tegmentum — Le tegmentum (couverture, en latin) est une zone sous corticale du cerveau, plus précisément, un réseau de neurones multisynaptique situé dans le tronc cérébral. Très colorée, elle contient la substance noire (ou substentia nigra) et le noyau… …   Wikipédia en Français

  • tegmentum — noun (plural tegmenta) Etymology: New Latin, from Latin tegumentum, tegmentum, covering, from tegere Date: 1832 an anatomical covering ; tegmen; especially the part of the ventral midbrain above the substantia nigra formed of longitudinal white… …   New Collegiate Dictionary

  • tegmentum — teg·men·tum (tĕg mĕnʹtəm) n. 1. See tegmen. 2. A part of the midbrain consisting of white fibers running lengthwise through gray matter.   [Latin tegumentum, tegmentum, covering, from tegere, to cover. See (s)teg .   teg·menʹtal ( təl) adj. * * * …   Universalium

  • Tegmentum — Teg|mẹntum [aus lat. tegmentum, Gen.: tegmenti = Decke, Bedeckung] s; s, ...ta: 1) Decke, Dach, rückwärtige Bedeckung (eines Organs; Anat.). 2) der rückwärtige Teil des Hirnschenkels hinter der ↑Substantia nigra (Anat.). Teg|mẹntum… …   Das Wörterbuch medizinischer Fachausdrücke

  • tegmentum — n. [L. tegere, to cover] (MOLLUSCA: Polyplacophora) The outer, sometimes softer and porous calcareous layer of the valve below the periostracum …   Dictionary of invertebrate zoology

  • tegmentum — noun a) The ventral portion of the midbrain, divided from the tectum by the cerebral aqueduct and the periaqueductal grey b) Containing the following nuclei: red nucleus, substantia nigra, ventral tegmental area See Also: tec …   Wiktionary


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