| 单词 | tympanic cavity |
| 释义 | > as lemmastympanic cavity a. Anatomy and Zoology. Of, pertaining to, or connected with the tympanum, or drum of the ear (as tympanic artery, tympanic bulla, tympanic cavity, tympanic membrane, tympanic muscle, tympanic nerve, tympanic ossicle, etc.); of the nature of a tympanum. tympanic bone, in mammals, a bone of annular to tubular form supporting the tympanic membrane and surrounding the external auditory meatus (in the adult forming part of the temporal bone); in lower vertebrates, one of several bones variously supposed to be homologous with this, esp. the quadrate bone, which supports the lower jaw. tympanic pedicle, the slender bone or series of bones by which the lower jaw is suspended in fishes. tympanic plate, tympanic ring, the tympanic bone of mammals. ΘΚΠ the world > life > the body > sense organ > hearing organ > parts of hearing organ > [adjective] > ear-drum tympanic1808 tympanal1825 tympano-Eustachian1890 tympano-cervical1900 tympanomastoidc1900 tympanostapedial1900 1808 Med. & Physical Jrnl. 19 410 Other branches of the same nerve which supply the tympanic muscles. 1840 E. Wilson Anatomist's Vade Mecum (1842) 277 The Tympanic branch [of the glossopharyngeal nerve] is small. 1849 C. Lyell 2nd Visit U.S. (1850) II. 75 The convoluted tympanic bones..characteristic of cetaceans. 1851 G. F. Richardson Geol. (1855) viii. 308 The lower jaw is articulated to a tympanic bone as in reptiles. 1851 W. B. Carpenter Princ. Physiol. §825 The purpose of this Tympanic apparatus is..to receive the sonorous vibrations from the air, and to transmit them to the membranous wall of the labyrinth. 1860 J. Tyndall Glaciers of Alps 225 These aërial waves enter the external ear, meet..the so-called tympanic membrane. 1860 R. G. Mayne Expos. Lexicon Med. Sci. Tympanic Pedicle,..the large and long pedicle which supports the mandible in fishes,..subdivided into sometimes two or three, and commonly into four pieces. 1876 Nature 20 July 253/2 Sawing out the temporal bone,..and exposing the tympanic bulla. 1893 A. Newton et al. Dict. Birds: Pt. 1 180 The quadrate bone..in Mammals..is reduced and modified into the comparatively insignificant tympanic ring. < as lemmas |
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