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.
in human respiratory system: Interplay of respiration, circulation, and metabolism. The interplay of respiration, circulation, and metabolism is the key to the functioning of the respiratory system as a whole. Cells set the demand for oxygen uptake and carbon dioxide discharge, that is, for gas exchange in the lungs. The circulation of the blood links the sites of oxygen utilization and uptake.