词汇 | metencephalon |
释义 | metencephalon noun[ Cusually plural ] anatomy specializeduk /ˌmet.enˈsef.ə.lɒn//ˌmet.enˈkef.ə.lɒn/ us /ˌmet̬.ənˈsef.ə.lɑːn/pluralmetencephalauk /ˌmet.enˈsef.ə.lə//ˌmet.enˈkef.ə.lə/ us /ˌmet̬.ənˈsef.ə.lə/ an area at the back of the developing brain of a baby before it is born: The pons develops from the embryonic metencephalon, alongside the cerebellum. The pons is developed from the ventro-lateral wall of the metencephalon. an area at the back of the brain consisting of the cerebellum and pons: It is customary to divide the rest of the hindbrain into two parts; an upper, called the metencephalon, and a lower, the myelencephalon. Compare hindbrain rhombencephalon The hindbrain splits into two areas, the metencephalon and the myelencephalon, and the metencephalon gives rise to the cerebellum and pons. At five gestational weeks, the brain has divided into its major subdivisions: telencephalon, diencephalon, mesencephalon, metencephalon, and myelencephalon. Cranial nerve VI originates below the trigeminal nerve from the floor of the metencephalon. The brain & nervous system abducens nerve abducent nerve accessory nerve alexithymia allism glossopharyngeal nerve grey matter hemispheric hemispherical hindbrain neurogenic neurogenically neuroglia neuroglial neurohormonal reticular formation rhinencephalon rhombencephalon right brain right-brained |
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