To select the time format and to set the time, follow these steps: 1  From the main menu, tap Change preferences. 2  Tap Set clock. 3  Select how the time should be displayed and then tap Next. 4  The easiest way to set the time is by tapping the Sync button. 5  Your navigation device will then take the time from GPS information.
The body maintains a stable level of oxygen saturation for the most part by chemical processes of aerobic metabolism associated with breathing. Using the respiratory system, red blood cells, specifically the hemoglobin, gather oxygen in the lungs and distribute it to the rest of the body. The needs of the body's blood oxygen may fluctuate such as during exercise when more oxygen is required or when living at higher altitudes.
The respiratory system is a group of organs responsible for carrying oxygen from the air to the bloodstream and expelling the waste product carbon dioxide.The main parts of this system are the airways, the lungs and linked blood vessels, and the muscles that enable breathing.The airways are passages that carry oxygen-rich air to the lungs and carbon dioxide out of the lungs.The airways include the: Air first enters the body through the nose or mouth, which wets and warms the air. (Cold, dry air can irritate the lungs.) The air then travels through the larynx and down the trachea.he airways are passages that carry oxygen-rich air to the lungs and carbon dioxide out of the lungs. The airways include the: Air first enters the body through the nose or mouth, which wets and warms the air. (Cold, dry air can irritate the lungs.) The air then travels through the larynx and down the trachea.