| fibril | The diminuitive of fibre. A small fibre, a fine thread. (12 Dec 1998) |
|---|---|
| fibrilla | <biology> A minute thread of fibre, as one of the fibrous elements of a muscular fibre; a fibril. Origin: NL. See Fibril. Source: Websters Dictionary (01 Mar 1998) |
| fibrillar | 1. Relating to a fibril. 2. <biology> Denoting the fine rapid contractions or twitchings of fibres or of small groups of fibres in skeletal or cardiac muscle. Synonym: filar. (05 Mar 2000) |
| fibrillar baskets | <biology> The scleral end of neuroglia fibres of Muller that as fine, tapering, needlelike fibrillae ascend the proximal parts of rods and cones, giving them a fibrillar appearance. (05 Mar 2000) |
| fibrillar centre | <cell biology> Location of the nucleolar ribosomal chromatin at telophase: as the nucleolus becomes active the ribosomal chromatin and associated ribonucleoprotein transcripts compose the more peripherally located dense fibrillar component. (12 Nov 1997) |
| fibrillar region | <cell biology> Dense staining region of the nucleolus composed of 5nm fibres, RNA transcripts. (12 Nov 1997) |
| fibrillary | 1. Relating to a fibril. 2. <biology> Denoting the fine rapid contractions or twitchings of fibres or of small groups of fibres in skeletal or cardiac muscle. Synonym: filar. (05 Mar 2000) |
| fibrillary astrocytoma | <tumour> Astrocytoma derived from fibrillary astrocytes. (05 Mar 2000) |
| fibrillary chorea | Continuous involuntary quivering or rippling of muscles at rest, caused by spontaneous, repetitive firing of groups of motor unit potentials. Synonym: fibrillary chorea, kymatism, Morvan's chorea. Origin: myo-+ G. Kyma, wave (05 Mar 2000) |
| fibrillary contractions | <physiology> Contraction's occurring spontaneously in individual muscle fibres; they are seen commonly a few days after damage to the motor nerves supplying the muscle, and this type of activity is distinguished from fasciculation, which is related to activation of motor units. (05 Mar 2000) |
| fibrillary neuroma | plexiform neurofibroma |
| fibrillary waves | The waves of atrial flutter usually best seen in ECG leads 2, 3, and AVF. (A small f indicates atrial fibrillation). Synonym: fibrillary waves, fibrillatory waves, flutter-fibrillation waves. (05 Mar 2000) |
| fibrillate | 1. To make or to become fibrillar. Synonym: fibrillated. 3. To be in a state of fibrillation. (05 Mar 2000) |
| fibrillated | Composed of fibrils. Synonym: fibrillate. (05 Mar 2000) |
| fibrillation | <physiology> A small, local, involuntary contraction of muscle, invisible under the skin, resulting from spontaneous activation of single muscle cells or muscle fibres. (12 Nov 1997) |
| muscular fibril | <cell biology> Long cylindrical organelle of striated muscle, composed of regular arrays of thick and thin filaments and constituting the contractile apparatus. (18 Nov 1997) |
|---|---|
| subpellicular fibril | A microtubule lying beneath the unit membrane (pellicle) of many protozoans, often as a palisade of longitudinally arranged fibrils connected by fine lateral bridges that support the external cell form; in certain sporozoan stages a fixed number of microtubule's are found, extending longitudinally from the polar ring. Synonym: subpellicular fibril. (05 Mar 2000) |