The blood contains both
extra cellular fluid (fluid in plasma) and intracellular fluid (fluid in the
RBC). However, blood is considered to be separate fluid compartment because it
is contained in a chamber of its own; the circulatory system. The volume of
blood is especially important to the control of cardiovascular dynamics. The
average blood volume of an adult is about 7% the body weight, or about 5 to 6l.
About 55% of the blood is plasma and 45% is red blood cell, but this percentage
can vary considerably in different people depending on sex, weight and other
factors.
extra cellular fluid (fluid in plasma) and intracellular fluid (fluid in the
RBC). However, blood is considered to be separate fluid compartment because it
is contained in a chamber of its own; the circulatory system. The volume of
blood is especially important to the control of cardiovascular dynamics. The
average blood volume of an adult is about 7% the body weight, or about 5 to 6l.
About 55% of the blood is plasma and 45% is red blood cell, but this percentage
can vary considerably in different people depending on sex, weight and other
factors.