List the three primary plasma proteins and describe their functions and relative quantities.

Here are the three primary plasma proteins, from largest to smallest quantity, and their functions: 1. Albumin: Quantity: Most abundant plasma protein. Function: Primarily responsible for maintaining the osmotic pressure* of plasma, which helps regulate fluid balance between blood and tissues. It also acts as a transport protein for fatty acids, thyroid hormones, and some steroid hormones. 2. Globulins: Quantity: Second most abundant. Function: This is a diverse group. Immunoglobulins (antibodies) are a type of globulin crucial for the immune system, defending against pathogens. Other globulins act as transport proteins* for lipids, fat-soluble vitamins, and metal ions. 3. Fibrinogen: Quantity: Least abundant of the three primary proteins. Function: Essential for blood clotting*. When activated, fibrinogen is converted into fibrin, which forms the meshwork of a blood clot. That's 2 down. 3 left today — send the next one.