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 Urban Planning? Urban planning is the profession that concerns itself with the health and quality of life of urban placesâcities and their suburbs, small towns and rural villages. Urban planners care for cities as different as New York City and Boscobel, Wisconsin.