6. Set the clock by the window. There is no need to set the minute and second hands like on a standard clock. Once the SkyScan clock picks up the signal from the NIST station, it will advance by eight seconds until it gets the right signal.
In Depth: Respiratory. The respiratory system, which includes air passages, pulmonary vessels, the lungs, and breathing muscles, aids the body in the exchange of gases between the air and blood, and between the blood and the bodyâs billions of cells.
The respiratory system works with the digestive and circulatory systems to make cellular respiration possible. Cellular respiration requires glucose, or sugars, which you get from food, in addition to oxygen, which you get from breathing. These materials are transported to every cell in your body through blood vessels.