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mesencephalon |
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mesencephalon [¦mez·ən′sef·ə‚län] (embryology) The middle portion of the embryonic vertebrate brain; gives rise to the cerebral peduncles and the tectum. Also known as midbrain. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Labeling of inclusion bodies and some intracytoplasmic staining was notable from the forebrain (prosencephalon) to the mesencephalon (Figure, panel A). 33) From lampreys to primates, nuclei in the mesencephalon, referred to as the "mesencephalic locomotor region" (MLR), initiate locomotion through activation of lower brain-stem reticulospinal neurons. Weber and Pert found a "dramatic" drop in killer cell performance when rats got morphine delivered to a brain region known as the peri-aqueductal gray matter of the mesencephalon (PAG). |
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