Mast cells. Most histamine in the body is generated in granules in mast cells and in white blood cells called basophils and eosinophils. Mast cells are especially numerous at sites of potential injury â the nose, mouth, and feet, internal body surfaces, and blood vessels.
urban adjective. âº of or in a âcity or âtown: Many âAmericans were âleaving the âfarm for the âpromise of urban âlife. Over 82% of Texans âlive in urban âareas. (Definition of urban from the Cambridge Academic Content Dictionary Â© Cambridge University Press).
Dictionary Definition: Urban-of city: relating to or belonging to a city. Suburban-relating to suburb: relating to, belonging to, or located in a suburb. Rural-outside city: found in or living in the country.ot all agencies use the exact same population break downs or terms (exam. some may use Metropolitan Areas). Furthermore, agencies who use Rural, Urban, and Suburban data, sometimes define the boundaries different than other agencies.