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Mesencephalic tegmentum

mesencephalic tegmentum n.
A part of the mesencephalon consisting of white fibers running lengthwise through gray matter from the substantia nigra to the level of the cerebral aqueduct.


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    mesencephalitis mes·en·ceph·a·li·tis (měz’ěn-sěf’ə-lī’tĭs, měs’-) n. Inflammation of the mesencephalon.

  • Mesencephalon

    [mes-en-sef-uh-lon, -luh n, mez-] /ˌmɛs ɛnˈsɛf əˌlɒn, -lən, ˌmɛz-/ noun, plural mesencephala [mes-en-sef-uh-luh, mez-] /ˌmɛs ɛnˈsɛf ə lə, ˌmɛz-/ (Show IPA), mesencephalons. 1. Anatomy. the midbrain. /ˌmɛsɛnˈsɛfəˌlɒn/ noun 1. the part of the brain that develops from the middle portion of the embryonic neural tube Nontechnical name midbrain Compare prosencephalon, rhombencephalon mesencephalon mes·en·ceph·a·lon (měz’ěn-sěf’ə-lŏn’, měs’-) […]

  • Mesencephalotomy

    mesencephalotomy mes·en·ceph·a·lot·o·my (měz’ěn-sěf’ə-lŏt’ə-mē, měs’-) n. Surgical sectioning of any structure in the mesencephalon, especially of the pain-conducting tracts for the relief of unbearable pain.

  • Mesenchyme

    [mes-eng-kahym, mez-] /ˈmɛs ɛŋ kaɪm, ˈmɛz-/ noun, Embryology. 1. cells of mesodermal origin that are capable of developing into connective tissues, blood, and lymphatic and blood vessels. /ˈmɛsɛŋˌkaɪm/ noun 1. (embryol) the part of the mesoderm that develops into connective tissue, cartilage, lymph, blood, etc mesenchyme mes·en·chyme (měz’ən-kīm’, měs’-) n. The part of the embryonic […]

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