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  2. List of human blood components - Wikipedia

    en.wikipedia.org/wiki/List_of_human_blood_components

    Amino acid 2.7-5.5 × 10 −5: 2.4 ... Nitrogen: respiratory gas ... In blood banking, the fractions of Whole Blood used for transfusion are also called components ...

  3. Blood - Wikipedia

    en.wikipedia.org/wiki/Blood

    Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. [1] Blood is composed of blood cells suspended in blood plasma.

  4. Composition of the human body - Wikipedia

    en.wikipedia.org/wiki/Composition_of_the_human_body

    The elements listed below as "Essential in humans" are those listed by the US Food and Drug Administration as essential nutrients, [9] as well as six additional elements: oxygen, carbon, hydrogen, and nitrogen (the fundamental building blocks of life on Earth), sulfur (essential to all cells) and cobalt (a necessary component of vitamin B 12).

  5. Serum (blood) - Wikipedia

    en.wikipedia.org/wiki/Serum_(blood)

    Preparation of serum cups for a lipids panel designed to test cholesterol levels in a patient's blood. Serum (/ ˈ s ɪər ə m /) is the fluid and solvent component of blood which does not play a role in clotting. [1] It may be defined as blood plasma without the clotting factors, or as blood with all

  6. Biological roles of the elements - Wikipedia

    en.wikipedia.org/wiki/Biological_roles_of_the...

    Its ion is used as an electrolyte, as well as making the hydrochloric acid the stomach uses for digestion. [36] Excessive blood chlorides (hyperchloemia) are a symptom of several diseases; but the condition itself does not have symptoms. [37] Elemental Cl 2 is toxic. [11] chromium: 24: 4: Appears to be essential in humans. Affects insulin ...

  7. Blood plasma - Wikipedia

    en.wikipedia.org/wiki/Blood_plasma

    Blood plasma is a light amber-colored liquid component of blood in which blood cells are absent, but which contains proteins and other constituents of whole blood in suspension. It makes up about 55% of the body's total blood volume. [ 1 ]

  8. Sodium in biology - Wikipedia

    en.wikipedia.org/wiki/Sodium_in_biology

    The sodium–potassium pump, a critical enzyme for regulating sodium and potassium levels in cells. Sodium ions (Na +) are necessary in small amounts for some types of plants, [1] but sodium as a nutrient is more generally needed in larger amounts [1] by animals, due to their use of it for generation of nerve impulses and for maintenance of electrolyte balance and fluid balance.

  9. Iron in biology - Wikipedia

    en.wikipedia.org/wiki/Iron_in_biology

    Iron is also stored as a pigment called hemosiderin, which is an ill-defined deposit of protein and iron, created by macrophages where excess iron is present, either locally or systemically, e.g., among people with iron overload due to frequent blood cell destruction and the necessary transfusions their condition calls for. If systemic iron ...