body cavity, any of the spaces in the human body that contain organs. One major cavity, the thoracic cavity, is subdivided into a pericardial and two pleural cavities.Any space in the body that does not freely communicate with the outside.ny of the spaces in the human body that contain organs. One major cavity, the thoracic cavity, is subdivided into a pericardial and two pleural cavities. Any space in the body that does not freely communicate with the outside.
For other uses, see Kalamazoo (disambiguation). Kalamazoo /ËkÃ¦lÉmÉËzuË/ is a city in the southwest region of the U.S. state of Michigan. It is the county seat of Kalamazoo County. As of the 2010 census, Kalamazoo had a total population of 74,262.
By 1860, Kalamazoo County's population had reached twenty-five thousand, and its county seat was Michigan's fifth largest town. Kalamazoo's first major industry was agriculture. During the early 1840s, David Walbridge operated a barge system that transported the county's produce to the mouth of the Kalamazoo River.