Human Physiology Lecture Notes

Difference between Blood Plasma and Serum


Difference between Serum and Plasma

Blood Plasma vs Blood Serum
(Similarities and Differences between Blood Serum and Plasma)

Blood is a body fluid composed of blood cells suspended in the blood plasma. Blood facilitate the transport of oxygen, carbon dioxide, nutrients and hormones in the body. The terms ‘Blood Plasma’ and ‘Blood Serum’ are synonymously used. In fact, they are two different components of the blood. The blood chiefly composed of three main components; they are serum, plasma and blood corpuscles (RBC and WBC).

Serum: Serum is the liquid part of blood (plasma) without the clotting factors (fibrinogen). Serum = plasma – clotting factors

Plasma: Plasma is the medium of blood in which the blood cells (RBC and WBC) and other components of the blood are suspended. The plasma composed of serum and clotting factor.

The present post discuss the Similarities and Differences between Blood Serum and Plasma

Similarities between Serum and Plasma

Ø  Both serum and plasma are the components of blood.

Ø  Both serum and plasma are used for blood testing for diagnostic purpose.

Ø  Both are the fluid component of blood.

Ø  The composition plasma and serum is more or less similar.

Ø  Both contain hormones, glucose and electrolytes.

Ø  Both contain antigens and antibodies.

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