Heart Rate, also called pulse rate, the number of times the ventricles of the heart contract and relax per minute.
Ratio of the volume of oxygen fixed on hemoglobin to the maximum volume of oxygen that the same quantity of blood can fix.
Respiratory frequency is the number of respiratory cycles (inhalation and expiration) per unit of time, measured in an individual.
Blood pressure is the pressure of blood pushing against the walls of your arteries. Arteries carry blood from your heart to other parts of your body.