The buffy coat is a thin whitish layer that forms after blood has settled and consists of white blood cells, platelets and other blood components. This layer separates the blood plasma (the fluid containing proteins, carbohydrates and other substances) and the red blood cells (red blood cells).
Leukocytes are white blood cells that protect the body from infections and other diseases. They are found in the buffy coat and perform their function of protecting the body.
Platelets are small platelets of blood that are involved in the blood clotting process. They are also found in the buffy coat.
After the blood has settled, the buffy coat can be used to analyze the number of leukocytes in the blood. This can be useful for diagnosing various diseases such as infections, cancer and others.
Overall, the buffy coat is an important component of the blood and plays an important role in protecting the body from infections and diseases.