Volume and Osmolarity of Blood PP

Both factors, osmolarity and volume, of blood have lasting effects on the body and the functions that occur throughout. Both factors change independent from each other, but work together to maintain an overall homeostasis within the body. For example if an individual were to work out and drank only water then the overall osmolarity of the blood would decrease due to the increase of water. However the volume will not change because the water lost in sweat would be replaced by the water consumed. The change in the osmolarity would lead to a reduction of vasopressin release and an increase in renin production. The renin production increase would promote the reabsorption of sodium, bringing the osmolarity back to an equilibrium state. This is a prime example of independent pathways that work together within the body in order to maintain homeostasis.