| 单词 | eustachian tube |
| 释义 | > as lemmasEustachian tube Used as the distinctive epithet in the names of certain anatomical structures or organs which were discovered by Eustachius. †Eustachian medulla: the medullary portion of the kidneys. Eustachian tube (occasionally Eustachian canal): a canal leading from the upper part of the pharynx to the cavity of the tympanum, which it appears to supply with air; hence Eustachian catheter, an instrument for inflating the Eustachian tube with air. Eustachian valve: a membranous fold at the orifice of the vena cava inferior, which in the fœtus directs the current of blood from this vessel to the foramen ovale and left auricle. ΚΠ 1741 A. Monro Anat. Nerves 15 in Anat. Human Bones (ed. 3) The Kidneys..have a reticulated Cortex of Vessels, from which the Eustachian or Bellinian Medulla, consisting of longitudinal Fibres and a few longitudinal Blood Vessels, proceeds. 1741 A. Monro Anat. Nerves 114 in Anat. Human Bones (ed. 3) Part of the Eustachian Tube. 1756 J. Wathen in Philos. Trans. 1755 (Royal Soc.) 49 215 I took that opportunity to examine the eustachian tube of each ear. 1828 R. Knox tr. H. Cloquet Syst. Human Anat. 633 The..Eustachian Valve. 1870 T. Holmes Syst. Surg. (ed. 2) III. 289 Recourse must be had to the Eustachian catheter. 1872 T. H. Huxley Lessons Elem. Physiol. (ed. 6) viii. 213 The function of the Eustachian tube is probably to keep the air in the tympanum..of about the same tension as that on the outer side. Eustachian tube a. A hollow cylindrical vessel or organ in the animal body; a canal, duct, passage, or pipe, as in the circulatory, alimentary, respiratory, reproductive, or excretory systems; often preceded by a defining word, as alimentary tube, bronchial tube, Eustachian tube, Fallopian tube, intestinal tube, etc.: see these words. ΘΚΠ the world > life > biology > physical aspects or shapes > shape > [noun] > tube or canal conduit1340 pipec1385 channela1387 porea1398 canal?a1425 cannel?1553 strait1558 canaliculus1661 tube1661 duct1667 tubule1677 ductus1699 funnel1712 cannule1719 infundibulum1799 meatus1800 tubulet1826 tubulus1826 canalicule1839 canalization1840 ductule1883 cf. 1598 J. Florio Worlde of Wordes Tubo,..the pipe wherethrough the marrow of the backe bone runneth. 1611 R. Cotgrave Dict. French & Eng. Tongues Tube, a Conduit~pipe; also, the hollow of the back-bone, or the pipe through which the marrow thereof doth runne.] 1661 T. Blount Glossographia (ed. 2) 1696 E. Phillips New World of Words (new ed.) Fallopian Tubes, two slender Passages proceeding from the Womb. 1741 A. Monro Anat. Nerves 114 in Anat. Human Bones (ed. 3) Part of the Eustachian Tube. 1756 J. Wathen in Philos. Trans. 1755 (Royal Soc.) 49 215 I took that opportunity to examine the eustachian tube of each ear. 1809 Med. & Physical Jrnl. 21 400 The œsophagus..that animated tube. 1826 W. Kirby & W. Spence Introd. Entomol. IV. xli. 128 Connected by a slender tube with each mandible in spiders is a vessel with spiral folds, which seems properly to belong to this head. 1829 J. Togno & E. Durand tr. H. Milne-Edwards & P. Vavasseur Man. Materia Medica xi. 407 Its passage in the intestinal tube is attended with the same phenomena. 1904 Brit. Med. Jrnl. 10 Sept. 584 The main depôts of lymphocytes..are round the hollow tubes of the body. < as lemmas |
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