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).
Urban fiction, also known as street lit is a literary genre set, as the name implies, in a city landscape; however, the genre is as much defined by the socio-economic realities and culture of its characters as the urban setting.The tone for urban fiction is usually dark, focusing on the underside of city living.ontemporary urban fiction was (and largely still is) a genre written by and for African Americans. In his famous essay â The Souls of Black Folk ,â W. E. B. Du Bois discussed how a veil separated the African American community from the outside world.