单词	rostral
释义	rostral /ˈrɒstr(ə)l / adjective 1 Anatomy Situated or occurring near the front end of the body, especially in the region of the nose and mouth or (in an embryo) near the hypophyseal region: the rostral portion of the brain... There may also be stimuli that originate from a region of the brain rostral to the pons and medulla (possibly the hypothalamus and motor cortex) and operate independently of the other stimuli. The typical somatic nerve fibers in the striated muscle at the rostral end of the organ terminate in motor end plates. A peristaltic contraction, a single front of contraction moving smoothly from the rostral end of the esophagus to the stomach, always follows a swallow. 2 Zoology Of or on the rostrum: in these snakes the rostral shield is enlarged and flattened Derivatives rostrally adverb ... In the midline rostrally are the frontal and spheroid sinuses. EMG signals show high amplitude spikes both rostrally and caudally, with no contralateral muscle activity and no detectable rostrocaudal lag at the onset of muscle activity. A profusion of white fibers issuing from the ventral aspect of the dentate nucleus converge rostrally to form the main part of the superior cerebellar peduncle. Origin Early 19th century: from rostrum + -al.
随便看	vorticose vorticular Vosges Vostok vostro account votable votarist votary vote ordinary share ordinary time ordinary wine ordinate ordination ordinator ordinee ordn. ordnance Ordnance Board ordnance datum ordnance depot ordnance map ordnance sheet Ordnance Survey Ordnance Survey map

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