| 释义 |
Eustachian
Eu`sta´chi`an
| a. | 1. | (Anat.) Discovered by Eustachius.| Eustachian catheter | | a tubular instrument to be introduced into the Eustachian tube so as to allow of inflation of the middle ear through the nose or mouth. |
| Eustrachian tube | | (Anat.) a passage from the tympanum of the ear to the pharynx. See Ear. |
| Eustachian valve | | (Anat.) a crescent-shaped fold of the lining membrane of the heart at the entrance of the vena cava inferior. It directs the blood towards the left auricle in the fetus, but is rudimentary and functionless in the adult. |
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EncyclopediaSeeEustachian tubeeustachian
eu·sta·chian (yū-stā'shăn), There is no historical or phonetic basis for the pronunciation ū-stā'shun.Described by or attributed to Eustachio.eu·sta·chian (yū-stā'-shē-an) Described by or attributed to Bartolomeo Eustachio (1524-1574); usually referring to the pharyngotympanic (auditory) tube. eustachian (u-sta'ke-an) (-shen) [Bartolomeo Eustachio (Eustachi), It. anatomist, 1520–1574] Pert. to the auditory tube. See: ear; eustachian tube |