| EMA | electronic microanalyzer; emergency medical assistance, emergency medical assistant; endothelial mon... |
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| FAMA | Fellow of the American Medical Association; fluorescent antibody to membrane antigen |
| FUR | 5-fluorouracil and radiation; fluorouracil riboside; fluorouridine; follow-up report; furin membrane... |
| GBM | glomerular basement membrane |
| GCBM | glomerular capillary basement membrane |
| internal intercostal membrane | The membrane that replaces the internal intercostal muscle posteriorly, medial to the angles of the ribs. Synonym: membrana intercostalis interna. (05 Mar 2000) |
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| internal limiting membrane | Formed by the expanded inner ends of Muller's fibres, outer limiting membrane, not a membrane but a row of junctional complexes. Synonym: membrana limitans. (05 Mar 2000) |
| internal membrane | General term for intracellular membrane systems such as endoplasmic reticulum. Not particularly helpful, but has the advantage of being noncommittal. (18 Nov 1997) |
| interosseous membrane of forearm | The dense membrane that connects the interosseous margins of the radius and ulna, forming the radioulnar syndesmosis, and with the bones separating the flexor and extensor compartments of the forearm. Synonym: membrana interossea antebrachii. (05 Mar 2000) |
| interosseous membrane of leg | The dense fibrous layer that connects the interosseous margins of the tibia and fibula, forming the upper portion of the tibiofibular syndesmosis and, with the bones and intermuscular septa, creating anterior and posterior comparments of the leg. Synonym: membrana interossea cruris, ligamentum tibiofibulare medium. (05 Mar 2000) |
| ivory membrane | The lining membrane of the pulp cavity of a tooth, consisting of the odontoblastic layer. Synonym: ivory membrane. (05 Mar 2000) |
| obturator membrane | The thin membrane of strong interlacing fibres filling the obturator foramen. Synonym: membrana obturatoria. (05 Mar 2000) |
| olfactory membrane | That part of the nasal mucosa having olfactory receptor cells and glands of Bowman. (05 Mar 2000) |
| oral membrane | A bilaminar (ectoderm and endoderm) membrane derived from the prochordal plate; after the embryonic head fold has evolved it lies at the caudal limit of the stomodeum. Synonym: oral membrane, oropharyngeal membrane. (05 Mar 2000) |
| oronasal membrane | A thin, transient epithelial sheet separating the primitive nasal cavity from the stomodeum in the seven-week-old human embryo. Synonym: oronasal membrane. (05 Mar 2000) |
| oropharyngeal membrane | A bilaminar (ectoderm and endoderm) membrane derived from the prochordal plate; after the embryonic head fold has evolved it lies at the caudal limit of the stomodeum. Synonym: oral membrane, oropharyngeal membrane. (05 Mar 2000) |
| otolithic membrane | A gelatinous membrane surmounting the acoustic maculae of the saccule and utricle and containing minute calciferous granules, known as otoconia, otoliths, or statoconia. (12 Dec 1998) |
| outer membrane | The larger of the two membranes of a double membrane. (05 Mar 2000) |
| ovular membrane | The membrane enveloping the yolk; specifically, the thickened cell membrane of large-yolked ova. Synonym: ovular membrane, vitelline membrane. Sometimes used to designate the zona pellucida of a mammalian ovum. Synonym: yolk membrane. (05 Mar 2000) |
| oxygenators, membrane | Devices in which blood and oxygen are separated by a semipermeable membrane, generally of teflon or polypropylene, across which gas exchange occurs. The membrane may be arranged as a series of parallel plates or as a number of hollow fibres; in the latter arrangement, the blood may flow inside the fibres, which are surrounded by gas, or the blood may flow outside the fibres and the gas inside the fibres. (12 Dec 1998) |