Pertaining to elements in the blood or other body fluids.
An ancient theory holding that health came from balance between the bodily liquids termed humors. Disease was thought to arise when imbalance occurred between the humors. The humors were phlegm (water), blood, gall (black bile, thought to be secreted by the kidneys and spleen), and choler (yellow bile secreted by the liver). The humoral theory […]
Phlegm (water) Blood Gall (black bile thought to be secreted by the kidneys and spleen) Choler (yellow bile secreted by the liver) The humoral theory (also called humoralism was devised well before Hippocrates (c.460-c.375 BC). It was not definitively demolished until Rudolf Virchow published his formative book, Cellularpathologie, in 1858 that laid out the cellular […]
- Hump, dowager
An outward curvature of the vertebrae of neck, creating a hump at the back of the neck, once thought to be a characteristic deformity of older women. A dowager was a woman of high social rank whose husband was dead but who had a title (such as duchess) and property because of her marriage to […]
- Hunter syndrome
a severe form that causes progressive mental retardation, physical disability, and death before age 20 in most cases; and a mild form in which patients survive to adulthood, are able to reproduce, and have intellect that is impaired minimally, if at all. The gene for the enzyme iduronate sulfatase (deficient in Hunter’s syndrome) is on […]
The name of the gene responsible for Huntington disease (HD) and of the protein encoded by that gene. The molecular basis of HD is an increase in the length of a CAG triplet repeat (or ‘polyglutamine’) within the huntingtin gene. The gene is on chromosome 4p16.3. The huntingtin mutation (gene change) is fully dominant; homozygotes […]