| semioval centre | The great mass of white matter composing the interior of the cerebral hemisphere; the name refers to the general shape of this white core in horizontal sections of the hemisphere. Synonym: centrum medullare, centrum ovale, medullary centre, semioval centre, Vicq d'Azyr's centrum semiovale, Vieussens' centrum. (05 Mar 2000) |
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| sensory speech centre | The region of the cerebral cortex thought to be essential for understanding and formulating coherent, propositional speech; it encompasses a large region of the parietal and temporal lobes near the lateral sulcus of the left cerebral hemisphere; corresponding approximately to Brodmann's areas 40, 39, and 22. Synonym: sensory speech centre, Wernicke's area, Wernicke's field, Wernicke's region, Wernicke's zone. (05 Mar 2000) |
| sphenotic centre | One of the paired centre's of ossification of the sphenoid bone. (05 Mar 2000) |
| national centre for health care technology | A centre in the public health service which coordinates and administers a program of research, demonstrations, and evaluations of medical technologies and assessments of health care technology. (12 Dec 1998) |
| national centre for health statistics | A centre in the public health service which is primarily concerned with the collection, analysis, and dissemination of health statistics on vital events and health activities to reflect the health status of people, health needs, and health resources. (12 Dec 1998) |
| national health planning information centre | A centre in the health resources administration division of planning methods and technology which provides access to current information on health planning and resources development. (12 Dec 1998) |
| dentary centre | A specific ossification centre of the mandible that gives rise to the lower border of its outer plate. (05 Mar 2000) |
| diaphysial centre | Primary centre of ossification in the shaft of a long bone. (05 Mar 2000) |
| inspiratory centre | The region of the medulla oblongata that is electrically active during inspiration and where electrical stimulation produces sustained inspiration. (05 Mar 2000) |
| organising centre | <cell biology> See microtubule organising centre. (18 Nov 1997) |
| ossific centre | The site of earliest bone formation via accumulation of osteoblasts within connective tissue (membranous ossification) or of earliest destruction of cartilage prior to onset of ossification (endochondral ossification). Synonym: punctum ossificationis, ossific centre, point of ossification. (05 Mar 2000) |
| epiotic centre | The centre of ossification of the petrous part of the temporal bone that appears posterior to the posterior saemicircular canal. (05 Mar 2000) |
| expiratory centre | The region of the medulla oblongata that is electrically active during expiration and where electrical stimulation produces sustained expiration. (05 Mar 2000) |
| Kerckring's centre | An occasional independent ossification centre in the occipital bone; it appears in the posterior margin of the foramen magnum at about the sixteenth week of gestation. Synonym: Kerckring's ossicle. (05 Mar 2000) |
| feeding centre | A region of the lateral zone of the hypothalamus, electrical stimulation of which in the rat elicits uninterrupted eating; destruction of the region causes long-lasting anorexia. (05 Mar 2000) |