1. decrease weight of front of skull. 2. increase resonance of the voice. 3. insulating dental roots and eyes from rapid temp change. 4. humidifying/heating inhaled air. 5. regulation of intranasal and serum gas pressures. 6. immunological defense.
Kansas City lies in the Midwestern United States, as well as near the geographic center of the country, at the confluence of the longest river in the country, the Missouri River, and the Kansas River (also known as the Kaw River).
As of 2013, the estimated population of Kansas City is 467,007. Jackson County has the highest number of people per square mile. According to 2010 United States census data, there are 1,115 people per square mile in Jackson County, 558 in Clay County, 212 in Platte County and 142.8 in Cass County.