| HMSA | health manpower shortage area |
|---|---|
| HPSA | health professional shortage area |
| HTA | heterophil transplantation antigen; human thymocyte antigen; hydroxytryptamine; hypophysiotropic are... |
| LAA | left atrial appendage; left atrial area; leukemia-associated antigen; leukocyte ascorbic acid |
| LACN | local area communications network |
| embryonal area | Embryonic area, the area of the blastoderm on either side of, and immediately cephalic to, the primitive streak where the component cell layers have become thickened. (05 Mar 2000) |
|---|---|
| entorhinal area | Brodmann's area 28, a cytoarchitecturally well-defined area of multilaminate cerebral cortex on the medial aspect of the parahippocampal gyrus, immediately caudal to the olfactory cortex of the uncus; the area is the origin of the major fibre system afferent to the hippocampus, the so-called perforant pathway. (05 Mar 2000) |
| tricuspid area | The region of the chest wall over the lower part of the body of the sternum, where the sounds produced at the tricuspid valve are heard most distinctly. (05 Mar 2000) |
| trigger area | A specific point or area where, if stimulated by touch, pain, or pressure, a painful response will be induced. Synonym: dolorogenic zone, trigger area, trigger zone. (05 Mar 2000) |
| excitable area | Area of the frontal lobe concerned with primary motor control. It lies anterior to the central sulcus. (12 Dec 1998) |
| Jonston's area | An obsolete term for alopecia areata. (05 Mar 2000) |
| Kiesselbach's area | An area on the anterior portion of the nasal septum rich in capillaries (Kiesselbach's plexus) and often the seat of epistaxis. Synonym: Little's area. (05 Mar 2000) |
| unsuitable area | Areas not appropriate for timber harvest due to fragile or shallow soils, scenic values, special wildlife habitat areas, and riparian or wetland values, among other possible reasons. (05 Dec 1998) |
| lateral hypothalamic area | Extends throughout most of the rostrocaudal extent of the hypothalamus lateral to the column of the fornix; includes lateral tuberal nuclei, tuberomamillary nuclei, and diffuse populations of cells. Synonym: lateral hypothalamic area. (05 Mar 2000) |
| frontal area | Cortex of the frontal lobe of the cerebral hemisphere, originally, the entire cortical expanse anterior to the central sulcus, including the agranular motor and premotor cortex (Brodmann's areas 4 and 6), the dysgranular cortex (area 8), and the granular frontal (prefrontal) cortex anterior to the latter, now more often refers to the granular frontal (prefrontal) cortex. Synonym: frontal area. (05 Mar 2000) |
| fronto-orbital area | The cerebral cortex covering the basal surface of the frontal lobes. Synonym: fronto-orbital area. (05 Mar 2000) |
| fusion area | The area in and about the macula retinae in which stimulation of noncorresponding retinal points nevertheless results in stereoscopic vision. Synonym: fusion area. (05 Mar 2000) |
| Little's area | An area on the anterior portion of the nasal septum rich in capillaries (Kiesselbach's plexus) and often the seat of epistaxis. Synonym: Little's area. (05 Mar 2000) |
| local area networks | Communications networks connecting various hardware devices together within or between buildings by means of a continuous cable or voice data telephone system. (12 Dec 1998) |