As degranulation occurs, it causes the mast cell or basophil to release a series of chemicals that orchestrate the allergic reaction. Within every mast cell or basophil are 500 to 1500 granules containing more than thirty different allergy-causing chemicals.
Urban design is an inter-disciplinary subject that unites all the built environment professions, including urban planning, landscape architecture, architecture, civil and municipal engineering.
What is an Urban Planner? Urban planning is the planning of land use in cities. Urban planning determines how to make the best use of available space. It involves creating land use plans as well as reviewing, approving, modifying, and sometimes rejecting the plans of developers. Urban and city planners specialize in land use.