plasmainnehåll

Plasmainnehåll is a compound Swedish term that translates roughly to "plasma content" and is used in contexts where the composition of plasma is discussed. The exact meaning depends on the field: in biology it often refers to the constituents of blood plasma, while in physics it can describe the makeup of a plasma as a state of matter.

In a biological context, blood plasma is the liquid component of blood in which blood cells are suspended. Its composition is dominated by water, which accounts for most of its mass, along with a variety of dissolved substances. Plasma contains proteins such as albumin, globulins, and fibrinogen; electrolytes like sodium, potassium, and chloride; nutrients including glucose and lipids; waste products such as urea; and gases such as oxygen and carbon dioxide. Hormones and other signaling molecules are also carried in plasma. The precise plasma content is routinely assessed in clinical laboratories, and variations can indicate health issues or inform treatment plans. Plasma acts as a medium for transport, hydration, and immune functions, while specific proteins play roles in clotting, immune defense, and osmotic balance. Plasma can be processed in procedures such as plasma exchange or fractionation to obtain therapeutic proteins.

In physics, plasmainnehåll refers to the composition of a plasma, consisting of ions, electrons, neutral atoms or molecules, and radiation. Characteristic properties include electron temperature, ion density, and the degree of ionization. Plasma content is measured with techniques such as spectroscopy, Langmuir probes, and Thomson scattering. This contextual use is central to research in fusion energy, space physics, and industrial plasma applications.

See also: Blood plasma, Plasma (physics), Plasma proteins, Plasma exchange, Plasma fractionation.