A bronchus, is a passage of airway in the respiratory system that conducts air into the lungs. The first bronchi to branch from the trachea are the right main bronchus and the left main bronchus.
Sponsored Topics. Keizer ( /kaÉªzÉr/) is a city in Marion County, Oregon, United States, along the 45th parallel. It was named for Thomas Dove and John Brooks Keizer, two pioneers who arrived in the Wagon Train of 1843, and later filed donation land claims. The population was 32,203 at the 2000 census.
Washington County, Oregon. Washington County is one of 36 counties in the U.S. state of Oregon. As of the 2010 census, the population was 529,710, making it the state's second most populous county. The county seat and largest city is Hillsboro. Washington County is part of the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area. Cities in Washington County include Hillsboro, Beaverton, Tigard, and Forest Grove, the county's oldest city. Originally named Twality when created in 1843, the territorial legislature renamed it for the first president of the United States, George Washington, in 1849.