| HTLV-I-MA | human T-cell leukemia virus-I-associated membrane antigen |
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| ICM | inner cell mass; integrated conditional model; intercostal margin; International Confederation of Mi... |
| LMA | laryngeal mask airway; left mentoanterior [fetal position]; limbic midbrain area; liver cell membran... |
| MEN | Multiple Endocrine Neoplasia ; AD Trait 1. MEN Type I(= Wermer Syndro... |
| NK cell | Natural Killer cell |
| Nasmyth's membrane | The primary enamel cuticle, consisting of two extremely thin layers (the inner one clear and structureless, the outer one cellular), covering the entire crown of newly erupted teeth and subsequently abraded by mastication; it is evident microscopically as an amorphous material between the attachment epithelium and the tooth. Synonym: cuticula dentis, adamantine membrane, dental cuticle, membrana adamantina, Nasmyth's cuticle, Nasmyth's membrane, skin of teeth. (05 Mar 2000) |
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| stapedial membrane | The delicate mucosal layer that bridges the space between the crura and base of the stapes. Synonym: membrana stapedis. (05 Mar 2000) |
| statoconial membrane | A gelatinous membrane supported by the hairs of the hair cells of the maculae of the saccule and utriculus of the inner ear; adhering to the surface are numerous crystalline particles called statoconia. Synonym: membrana statoconiorum, otolithic membrane. (05 Mar 2000) |
| sternal membrane | Interlacing fibres from the anterior costosternal ligaments covering the anterior surface of the sternum. Synonym: membrana sterni. (05 Mar 2000) |
| nerve of tympanic membrane | Sensory branch of the auriculotemporal nerve supplying the external surface of the tympanic membrane. Synonym: ramus membranae tympani nervi auriculotemporalis, nerve of tympanic membrane. (05 Mar 2000) |
| striated membrane | The thickened cell membrane of the ovum in forms, such as certain amphibia, in which it appears radially striated under the light microscope; with the electron microscope the striations can be seen to be microvilli. Synonym: membrana striata, striated membrane, zona radiata. (05 Mar 2000) |
| nictitating membrane | A transparent fold of skin lying deep to the other eyelids at the mesial side, which may be drawn over the front of the eyeball. It is the so-called third eyelid, found in reptiles and birds generally and in many mammals. (12 Dec 1998) |
| Nitabuch's membrane | A layer of fibrin between the boundary zone of compact endometrium and the cytotrophoblastic shell in the placenta. Synonym: Nitabuch's layer, Nitabuch's stria. (05 Mar 2000) |
| nuclear membrane | An intracellular structure, consisting of two concentric membranes, enclosing the nucleoplasm and separating it from the cytoplasm. The areas where these two membranes fuse are called nuclear pore complexes. (12 Dec 1998) |
| superior recess of tympanic membrane | A space in the mucous membrane on the inner surface of the tympanic membrane between the flaccid part of the membrane and the neck of the malleus. Synonym: recessus membranae tympani superior, Prussak's pouch, Prussak's space. (05 Mar 2000) |
| deciduous membrane | The mucous membrane of the pregnant uterus that has already undergone certain changes, under the influence of the ovulation cycle, to fit it for the implantation and nutrition of the ovum; so-called because the membrane is cast off after labour. Synonym: membrana decidua, caduca, decidua, Hunter's membrane. (05 Mar 2000) |
| suprapleural membrane | The thickened portion of endothoracic fascia extending over the cupola of the pleura and reinforcing it; it attaches to the inner border of the first rib and to the transverse process of the seventh cervical vertebra. Synonym: membrana suprapleuralis, Sibson's aponeurosis, Sibson's fascia. (05 Mar 2000) |
| synovial membrane | The inner of the two layers of the articular capsule of a synovial joint, composed of loose connective tissue and having a free smooth surface that lines the joint cavity. It secretes the synovial fluid. (12 Dec 1998) |
| descemet's membrane | The strong, resistant, thin, noncellular fourth layer of the cornea, located between the endothelium (from which it is secreted) and the stroma. (12 Dec 1998) |
| diphtheritic membrane | The false membrane forming on the mucous surfaces in diphtheria. (05 Mar 2000) |