| tegmen | Origin: L, fr. Tegere, tectum, to cover. 1. A tegument or covering. 2. <botany> The inner layer of the coating of a seed, usually thin and delicate; the endopleura. 3. <zoology> One of the elytra of an insect, especially of certain Orthoptera. 4. <zoology> Same as Tectrices. Source: Websters Dictionary (01 Mar 1998) |
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| tegmen cruris | Old term for tegmentum mesencephali. (05 Mar 2000) |
| tegmen mastoideum | The lamina of bone roofing over the mastoid cells. (05 Mar 2000) |
| tegmen tympani | The roof of the middle ear, formed by the thinned anterior surface of the petrous portion of the temporal bone. Its anterior edge is inserted into the petrosquamous fissure so that it can be seen as a wedge of bone subdividing that fissure into a squamo tympanic and a petrotympanic fissure. Synonym: roof of tympanum. (05 Mar 2000) |
| tegmen ventriculi quarti | Roof of fourth ventricle, formed in its upper part by the superior medullary velum stretching between the two brachia conjunctiva (superior cerebellar peduncles), in its lower part by the inferior medullary velum composed of the choroid membrane and choroid plexus of the fourth ventricle. Synonym: roof of fourth ventricle. (05 Mar 2000) |
| tegmental | <biology> Of or pertaining to a tegument or tegmentum; as, the tegmental layer of the epiblast; the tegmental cells of the taste buds. Source: Websters Dictionary (01 Mar 1998) |
| tegmental decussations | The dorsal tegmental decussation (fountain or Meynert's decussation, decussatio fontinalis) of the left and right tectospinal and tectobulbar tracts, the ventral tegmental decussation (rubrospinal or Forel's decussation) of the left and right rubrospinal and rubrobulbar tracts; both are located in the mesencephalon. Synonym: decussationes tegmenti. (05 Mar 2000) |
| tegmental fields of Forel | Three circumscript, myelin-rich regions of the subthalamus known as H fields (from Haubenfelder); 1) field H1, corresponding to the thalamic fasciculus, a horizontal fibre stratum at the junction of the subthalamus and the overlying thalamus, is composed of pallidothalamic and cerebellothalamic fibres (brachium conjunctivum) and is separated by the zona incerta from the more ventrally placed field H2; 2) field H2, formed by the lenticular fasciculus and arching over the dorsal border of the subthalamic nucleus, is composed largely of pallidothalamic fibres; 3) field H3 or prerubral field, is a large field of intermingling gray and white matter immediately rostral to the red nucleus, uniting fields H1 and H2 around the medial margin of the zona incerta; its gray matter forms the prerubral nucleus. See: lenticular loop. Synonym: campi foreli, tegmental fields of Forel. (05 Mar 2000) |
| tegmental nuclei | Collective term for two small round cell groups in the caudal part of the midbrain (caudal pontine tegmental nucleus, nucleus tegmenti pontis caudalis and oral pontine tegmental nucleus, nucleus tegmenti pontis oralis), associated with the mamillary body by way of the mamillary peduncle and mamillotegmental tract. Synonym: nuclei tegmenti, Gudden's tegmental nuclei. (05 Mar 2000) |
| tegmental syndrome | <syndrome> A syndrome usually caused by a vascular lesion in the tegmentum; marked by contralateral hemiplegia and ipsilateral ocular paresis. (05 Mar 2000) |
| tegmental wall of middle ear | The superior wall, or roof, of the tympanic cavity, formed by the tegmen tympani of the temporal bone. Synonym: paries tegmentalis cavi tympani, tegmental wall of middle ear. (05 Mar 2000) |
| tegmentotomy | Production of lesions in the reticular formation of the midbrain tegmentum. Origin: tegmentum + G. Tome, incision (05 Mar 2000) |
| tegmentum | Origin: L, a covering. <anatomy> A covering; applied especially to the bundles of longitudinal fibres in the upper part of the crura of the cerebrum. Source: Websters Dictionary (01 Mar 1998) |
| tegmentum mesencephali | That major part of the substance of the mesencephalon or midbrain that extends from the substantia nigra to the level of the cerebral aqueduct. Synonym: tegmentum mesencephali, tegmentum, midbrain tegmentum. (05 Mar 2000) |
| tegmentum of pons | The part of the pons bounded laterally by the middle cerebellar peduncles and anteriorly by the ventral part of pons; it is continuous with the tegmentum of the mesencephalon and contains long tracts such as the medial and lateral lemnisci, cranial nerve nuclei, and reticular formation. Synonym: pars dorsalis pontis, tegmentum of pons. (05 Mar 2000) |
Synonyms : Mesencephali, Tegmentum, Mesencephalus, Tegmentum, Tegmentum Mesencephalus
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| tegmen |
[teg-MEN] (pl., tegmina [teg-MEAN-ah]) the thickened, leathery forewing of a grasshopper, cricket, mantid, or cockroach.
Ãâó: members.aol.com/YESedu/glossary.html
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| tegmentum |
Outermost layer, with sculpture and coloration, of a chiton shell.
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| tegmen |
A covering or integument, such as the tough, leathery forewing of certain insects or the inner coat of a seed.
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