- Average resting heart rate: 60 – 100 beats per minute. for well-trained athletes is 40 – 60 beats per minute.
- Normal Blood pressure: 120/80 mm of Hg
- The amount of Blood in the adult: approx. 5 liter
- Blood = Plasma + Blood Cells (RBCs, WBCs and Platelets)
- Blood pH is regulated to stay within the narrow range of 7.35 to 7.45, making it slightly basic.