| 单词 | midbrain |
| 释义 | > as lemmasmidbrain midbrain n. Anatomy and Zoology the part of the brainstem derived from the middle cerebral vesicle of the embryo, consisting of the cerebral peduncles, tegmenta, tectum, and cerebral aqueduct; also called mesencephalon. ΘΚΠ the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [noun] > regions of brain mesencephal1839 mesocephale1839 mesencephalon1846 prosencephalon1846 mesocephalon1857 midbrain1864 metencephalon1867 brain mantle1874 thalamencephalon1875 procerebrum1884 metepencephalon1885 thalamencephal1891 telencephalon1893 rhombencephalon1895 pretectum1961 1864 T. H. Huxley in Med. Times & Gaz. 27 Feb. 229/1 The entire encephalon is capable of division into three principal parts:—1. The fore-brain..; 2. The mid-brain, the corpora-quadigemina [sic], and the crura-cerebri; 3. The hind-brain, the cerebellum, pons Varolii, and medulla oblongata. 1913 Cunningham's Text-bk. Anat. (ed. 4) 581 The mesencephalon or mid-brain is the short, narrow part of the brain-stem which..connects the cerebrum..with the parts which occupy the posterior cranial fossa. 1944 Proc. Royal Soc. B. 132 34 It will be noted that all the descending tracts which suffered change had their origin in or below the mid-brain. 1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) xviii. 288 From the dorsal side of the midbrain are developed the optic lobes, which in the frog are large and conspicuous. 1994 N.Y. Times 10 May c10/3 The inner ear maps the frequency, timing and loudness of sounds. These signals are then sent to the mid-brain, where processing begins to determine sound location. < as lemmas |
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