Albumin is used to maintain osmotic pressure in the plasma by drawing fluid into the vascular space.
My friend Al is a bum (Albumin) who sits outside a grocery store, where people bring him lots of water (fluid).

Albumin is used to maintain osmotic pressure in the plasma by drawing fluid into the vascular space.
My friend Al is a bum (Albumin) who sits outside a grocery store, where people bring him lots of water (fluid).