membrana
Language: English
Part of speech: noun
Forms: form: membranae
form: membranæ
Etymology: From Latin membrāna (“membrane, parchment”). Doublet of membrane.
Senses: examples: text: It sometimes happens likewise that they appear at the same time, when the membranæ are bordered by knotty excrescences and the lungs with tubercles.
ref: 1866, John Gamgee, The Cattle Plague; With Official Reports of the International Veterinary Congresses, Held in Hamburg, 1863, and in Vienna, 1865, London: Robert Hardwicke, page 781:
text: By it he also explains the appearances which have induced Henle to imagine that it was furnished with innumerable glandular follicles, inasmuch as in vertical sections of the membranæ the appearance afforded by the deeper furrows is precisely that of mucous follicles.
ref: 1868, Edwin Lankester, George Busk, editors, Quarterly Journal of Microscopical Science, volume VIII, London: John Churchill and Sons, page 40:
text: Chronic aural catarrh most surely exists now on the right side, and as the membranæ are similar in appearance, each presenting unmistakable evidences of the aforesaid disease, I believe the left side had been affected by the chronic catarrh some time before, which in all probability induced the vertiginous attacks by an extension of disease to the labyrinth, and perhaps to the semicircular canals.
ref: 1877, Charles H. Burnett, “Section VI. Diseases of the Internal Ear”, “Chapter I. Primary and Secondary Inflammation”, in The Ear; Its Anatomy, Physiology, and Diseases. A Practical Treatise for the Use of Medical Students and Practitioners, Philadelphia: Henry C. Lea, “Secondary Inflammation of the Internal Ear”, page 579:
text: By this means the adhesion was divided, that portion of the membrana which was adherent being cut away and either removed or left adherent to the inner tympanic wall.
ref: 1893, Albert H. Buck, editor, Supplement to the Reference Handbook of the Medical Sciences, volume IX, New York: William Wood & Company, page 252, column 1:
text: July 21st, 1893, the patient was etherized, and I endeavored to remove first the right and then the left incus, after their exposure by exsection of the posterior-superior quadrants of the membranæ.
ref: 1893, Charles H. Burnett, “The Surgical Treatment of Chronic Tympanic Vertigo, Often Miscalled Ménière’s Disease”, in Transactions of the American Otological Society, volume V, New Bedford: Mercury Publishing Company, page 497:
text: Otoscopic examination of the ear revealed retracted but not thickened membranæ. The incus was visible through each. Hearing in the left ear was nil; in the right ear by means of the ear-trumpet only. The tuning-fork was not heard per ossa in either ear. The membranæ were found restricted in their movement under the pneumatic speculum.[…]By November 1st the right membrana had healed, and the man could hear conversation close to his ear without an ear-trumpet. A little tinnitus existed. / The day after the removal of the incus the patient could hear the voice close to the left ear, which had been impossible before. This ability, however, gradually disappeared before the membrana closed.
ref: 1894, S. Weir Mitchell, “Concerning the History of the Discovery of Reflex Ocular Neuroses, and the Extent to Which These Reflexes Obtain”, in George M. Gould, editor, The Medical News. A Weekly Medical Journal, volume LXIV, Philadelphia: Lea Brothers & Co., page 452, column 2:
text: Sept. 20th. Is very sick. Pulse is 115. Temperature 103. I simply examined the membranæ, which were normal. / Sept. 22, 24 and 26. Patient too sick to examine for hearing. Membranæ both normal.
ref: 1898, Medical Communications, volume XVII, page 499:
text: Paint the upper and lower surfaces of the membrana to be removed with some suitable anæsthetic; allow time for this to act, secure the membrana firmly with a pair of forceps or by passing a fine silk thread through it, and excise with a small pair of curved scissors or sharp scalpel as close to the inner canthus as possible.[…]In several cases which were kept under close observation for three or four years the animals did not in any way appear to be inconvenienced by the removal of their membranæ.
ref: 1899, Journal of Comparative Pathology and Therapeutics, volume XII, page 113:
text: The membranae were clear and transparent and the incus could be plainly seen.[…]In chronic purulent cases it is necessary to excise the remnants of the diseased membrana, and the malleus and the incus, with their synechial bands, in order to liberate the stapes.
ref: 1901, Transactions of the American Otological Society, volume VI, pages 257, 418:
text: Symptoms.—It is not uncommon, especially after some debilitating diseases, for one or both of the membranæ to become paralyzed and to protrude over the eyeball, sometimes to such an extent as to cause considerable irritation to the patient and to interfere with vision.[…]Occasionally, too, the membrana becomes swollen and afterwards thickened, or it may be the seat of a tumour.
ref: 1906, Frederick Thomas George Hobday, Surgical Diseases of the Dog and Cat: With Chapters on Anæsthetics and Obstetrics, pages 114, 115:
text: These may enlarge with the extension of the membranæ, but there is never any shifting.
ref: 1920, Contributions to Embryology, Washington: The Carnegie Institution of Washington, page 136:
text: Let us imagine the physical and the psychical as though they were separated from each other by a barrier like that between the blood and the cerebrospinal fluid. For the maintenance of a proper balance between the two there must be a certain permeability in the dividing membranae, but under pathological conditions the permeability may be increased or diminished.
ref: 1945, The Journal of Nervous and Mental Disease, page 270:
text: As it might be expected (under the concepts of evolution) it seems that there is a long series of intermediate conditions according to the degree of development which may have been reached by the membranae around the clinandrium.
ref: 1960, Proceedings of the Third World Orchid Conference, page 374:
text: The cells were filtrated through membranae Synpor 6 (VCHZ Synthesia Uhríněves)[…]of 0.4 u porosity on filtration devices with membrana dia. by means of an underpressure produced by rotary oil vacuum pumps. During filtration the cells on the membrana were washed with a 37° C hot M-medium. From the surface of the membrana the cells were washed and resuspended in an M-medium.[…]Following a 24 hours’ incubation in a cold room at the temperature of 4° C the samples were agitated and then filtered through membranae Synpor 6 of 24 mm dia. by means of a water pump.
ref: 1977, Genetica, pages 25, 26, 40:
text: In trypanosomes, the enzymatic conversion of the membranae form into the soluble form is accompanied by the unmasking of a particular immunological determinant, called cross-reacting determinant (CRD), which is located in the COOH-terminal phosphoethanolamine glycopeptide.
ref: 1987, Algology, Mycology & Protozoology (Microbiology Abstracts: Section C), page 83, column 1:
text: He believed that many chemical formation processes cannot be observed under the microscope (for instance, the construction of the membranae), but only the structures definitely formed become visible, sometimes with the aid of chemical reagents.
ref: 1997, Biology Integrating Scientific Fundamentals: Contributions to the History of Interrelations Between Biology, Chemistry and Physics from the 18th to the 20th Centuries, →ISBN, page 106:
glosses: A membrane.
examples: text: Parchment was used for the MSS. of the Pentateuch in the time of Josephus, and the membranae of 2 Tim. iv. 13, were skins of parchment.
ref: 1913, Charles Higgins, editor, Key to the Bible: Being an Encyclopedia, Concordance and Dictionary of Persons, Places and Things Mentioned in the Sacred Scriptures, page 441, column 2:
text: The parchment being much dearer than papyrus, the membranae consisted only of a few leaves.
ref: 1950, Hermathena: A Series of Papers on Literature, Science, and Philosophy, page 32:
text: In the opening poem, he recommends the edition in membrana, which is the popular and less costly one. In I 117 he has in view the de luxe edition which, apparently, was sold in a different book-shop. We learn from Martial that the public at large apparently contented itself with a less costly edition in membrana,⁴ whereas only wealthier persons bought a regularly got-up edition (clad in purple, etc.). We also can understand the disposition of the poems, for in the opening poem (I 2) Mart. wishes to attract the attention of the public at large and, therefore, recommends the edition in membrana.[…] / ⁴ In Book XIV among the presents of the Saturnalia books in membrana are mentioned again. Friedlaender pp. 296 and 299 ff. wrongly thinks that the membranae were the more costly presents, whereas Birt, Das antike Buchwesen (Leipzig 1882) had already offered the correct explanation.
ref: 1956, Vigiliae Christianae, pages 1–2:
glosses: A thin, animal-derived, flexible planar material, such as parchment.
Related terms: membrana tympani
membrana tympanica