Blood is not considered a component of extracellular fluid because it is contained within the cardiovascular system and does not directly contribute to the fluid outside of cells.
The extracellular fluid (ECF) is the body fluid that is not contained within cells. It includes the intravascular fluid (the blood plasma) and the interstitial fluid (the fluid between the cells). The ECF make up about 20% of the total body weight. Water is the largest component, making up approximately two-thirds of the total volume. The electrolytes include sodium, potassium, chloride, and bicarbonate. These ions are responsible for maintaining the body's fluid balance and electrical potential. Small molecules include glucose, amino acids, and lipids.
Learn more about Blood , visit : https://brainly.com/question/17030548
#SPJ4