Blood is an essential component of the human body, a red opaque liquid that circulates within the heart and blood vessels, and is an indispensable tissue of the human body.
Adult blood makes up about one-thirteenth of body weight and is composed of plasma and blood cells.
The main function of blood is to transport various nutritional components such as plasma proteins, lipoproteins, as well as inorganic salts, oxygen, hormones, enzymes, and antibodies contained in plasma to various parts of the body, providing what cells need, while collecting various metabolic products from cells and transporting them to their respective destinations.
Physiological changes and pathological changes in a living organism can often cause changes in blood composition, so the detection of blood components has very important clinical significance in clinical medicine.
