Phoenix International Airport Terminal Information. Phoenix Sky Harbor International Airport has three passenger terminal buildings: Terminal 2, Terminal 3, and Terminal 4, the largest.
Heart rate and blood pressure are influenced by this nerve. As part of the parasympathetic nervous system, its effects are to lower both heart rate and blood pressure. In the lungs, the vagus nerve acts to constrict bronchi by causing the smooth muscles to tighten.
Some of the main functions of the Vagus Nerve include, 1  Breathing. 2  Speech. 3  Sweating. Helping in keeping the larynx open during breathing.  Monitoring and regulating the 1  heartbeat. Informing the brain of the food that is ingested and food that has been digested.  The Vagus Nerve performs the major function of emptying the gastric region of food.