| fastigiated | 1. Narrowing towards the top. 2. <botany> Clustered, parallel, and upright, as the branches of the Lombardy poplar; pointed. 3. <zoology> United into a conical bundle, or into a bundle with an enlarged head, like a sheaf of wheat. Origin: L. Fastigium gable end, top, height, summit. Source: Websters Dictionary (01 Mar 1998) |
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| fastigiobulbar fibres | Nerve fibres projecting from the fastigial nuclei of the cerebellum to the brain stem; crossed and uncrossed fibres that terminate mainly in the vestibular and reticular nuclei, and in the medial accessory olivary nucleus. (05 Mar 2000) |
| fastigiobulbar tract | A fibre bundle originating in the fastigial nucleus (nucleus tecti) of both sides, passing out of the cerebellum in the inferior cerebellar peduncle (corpus restiforme), and distributing its fibres to the vestibular nuclei and other cell groups in the medulla oblongata. Prominent crossed fibres loop over the dorsal surface of the superior cerebellar peduncle before turning ventrally, forming the uncinate bundle of Russell. Synonym: tractus fastigiobulbaris. (05 Mar 2000) |
| fastigiospinal fibres | Crossed descending fibres originating in the fastigial nucleus of the cerebellum and ending in the spinal cord gray matter at cervical, and possibly lower, levels. (05 Mar 2000) |
| fastigium | 1. Apex of the roof of the fourth ventricle of the brain, an angle formed by the anterior and posterior medullary vela extending into the substance of the vermis. 2. The acme or period of full development of a disease. Origin: L. Top, as of a gable; a pointed extremity (05 Mar 2000) |
| fasting | Abstaining from all food. (12 Dec 1998) |
| fasting blood glucose | <endocrinology, investigation> A method for finding out how much glucose (sugar) is in the blood. The test can show if a person has diabetes. A blood sample is taken in a lab or doctor's office. The test is usually done in the morning before the person has eaten. The normal, nondiabetic range for blood glucose is from 70 to 110 mg/dl, depending on the type of blood being tested. If the level is over 140 mg/dl, it usually means the person has diabetes (except for newborns and some pregnant women). (09 Oct 1997) |
| fasting glucose | <endocrinology, investigation> A measurement of the blood glucose in the morning prior to the ingestion of any food for the prior 12 hours. (27 Sep 1997) |
| fasting hypoglycaemia | Excessively low blood glucose in association with fasting; can be seen in patients with hyperinsulinism but also occurs without definable disease. (05 Mar 2000) |
| fastness | The state of tolerance exhibited by bacteria to a drug or other agent. See: fast. (05 Mar 2000) |