| HTLV-MA | cell membrane antigen associated with the human T-cell leukemia virus |
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| HTLV-I-MA | human T-cell leukemia virus-I-associated membrane antigen |
| ICM | inner cell mass; integrated conditional model; intercostal margin; International Confederation of Mi... |
| ILM | insulin-like material; internal limiting membrane |
| IM | idiopathic myelofibrosis; immunosuppressive method; implementation monitoring; Index Medicus; indome... |
| cricovocal membrane | Thicker lower portion of the elastic membrane of the larynx, extending between the cricoid cartilage and the vocal ligaments, the latter actually being a thickening of the free, superior margin of the conus elasticus. Synonym: cricovocal membrane, elastic cone. Synonym: cricothyroid ligament. (05 Mar 2000) |
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| posterior atlanto-occipital membrane | The fibrous membrane that attaches between the posterior arch of the atlas and the posterior margin of the foramen magnum. Synonym: membrana atlanto-occipitalis posterior. (05 Mar 2000) |
| croupous membrane | <dermatology> A thick, tough fibrinous exudate on the surface of a mucous membrane or the skin, as seen in diphtheria. Synonym: croupous membrane, neomembrane, plica, pseudomembrane. (05 Mar 2000) |
| posterior recess of tympanic membrane | A narrow pocket in the tympanic wall between the posterior malleolar fold and the tympanic membrane. Synonym: recessus membranae tympani posterior, Troltsch's pockets, Troltsch's recesses. (05 Mar 2000) |
| postsynaptic membrane | That part of the plasma membrane of a neuron or muscle fibre with which an axon terminal forms a synaptic junction; in many instances, at least part of such a small postsynaptic membrane patch shows characteristic morphological modifications such as greater thickness and higher electron-density, believed to correspond to the transmitter-sensitive receptor site of such synapses. (05 Mar 2000) |
| cutaneous layer of tympanic membrane | The thin layer of skin on the external surface of the tympanic membrane. Synonym: cutaneous layer of tympanic membrane. (05 Mar 2000) |
| presynaptic membrane | That part of the plasma membrane of an axon terminal that faces the plasma membrane of the neuron or muscle fibre with which the axon terminal establishes a synaptic junction; many synaptic junctions exhibit structural presynaptic characteristics, such as conical, electron-dense internal protrusions, that distinguish it from the remainder of the axon's plasma membrane. See: synapse. (05 Mar 2000) |
| cytoplasmic membrane | <cell biology> The membrane that surrounds a cells cytoplasm, separating it from the environment. It consists of a double layer of phospholipids and has proteins embedded in it. (09 Oct 1997) |
| primary egg membrane | See: egg membrane. (05 Mar 2000) |
| proligerous membrane | A mass of epithelial cells surrounding the ovum in the ovarian follicle. Synonym: discus proligerus, ovigerus, proligerous disk, proligerous membrane. Origin: NA (05 Mar 2000) |
| Henle's fenestrated elastic membrane | elastic laminae of arteries |
| Henle's membrane | The transparent, nearly structureless inner layer of the choroid in contact with the pigmented layer of the retina. Synonym: basal lamina of choroid, basal layer of choroid, Bruch's membrane, Henle's membrane, lamina vitrea, vitreous lamella, vitreous membrane. (05 Mar 2000) |
| prophylactic membrane | A layer of pus cells lining an abscess cavity which have not yet autolyzed. Synonym: prophylactic membrane. (05 Mar 2000) |
| Scarpa's membrane | The membrane closing the fenestra cochleae or rotunda. Synonym: membrana tympani secundaria, Scarpa's membrane. (05 Mar 2000) |
| schneiderian membrane | The mucous membrane lining the nasal cavity. (12 Dec 1998) |