The importance of blood in the human body

Blood is a specialized fluid consisting of plasma and cells that spread throughout the body, and provides essential elements to all parts of the body, such as sugars, oxygen, and hormones, in addition to its importance in immune processes, blood clotting, and removing waste and toxins from the body, in addition to Many other important functions, and blood diseases may pose a great danger in some cases, due to their rapid spread through the bloodstream to all parts of the body, and the following is a statement of some of the important blood functions in the body.[1]

Material Transfer

As mentioned previously, blood helps transport various elements to all parts of the body, including the following:[2]

  • Nutrients: between the digestive system and the rest of the body.
  • Gas transport: such as transporting oxygen and carbon dioxide between the lungs and the rest of the body.
  • Transfer of hormones: where the blood transports them from the glands that produce them to the target cells.
  • Elimination of waste and toxins: where they are eliminated through the liver and kidneys.

body protection

Blood contributes to protecting the body and strengthening the immune system, through the following:[2]

  • It contains white blood cells that destroy pathogenic microorganisms and cancer cells.
  • Transfer of antibodies and proteins that inhibit the action of pathogens in the body.
  • Transfer of clotting factors that help blood clot, reduce bleeding, and blood loss.

maintain balance

The blood contributes to maintaining the balance of body temperature, as the body temperature rises when exercising on a warm day, which leads to an increase in blood transfer from the heart to the surroundings of the body. The body, and when temperatures drop, the blood supply to the skin is reduced to keep the body warm. It is also worth noting that blood helps regulate pH, chemical balance, and regulate water content in cells.[3]

blood components

Blood components can be divided into four main components, which we show in the following:[1]

  • White blood cells.
  • Red blood cells.
  • Platelets.
  • blood plasma

the reviewer

  1. ^ AB Christian Nordqvist (8-25-2017), “Blood: Everything you need to know”,, Retrieved 5-12-2019. Edited.
  2. ^ AB “What does blood do?”,, 7-1-2015, Retrieved 30-6-2019. Edited.
  3. ↑ “Functions of Blood”,, Retrieved 5-12-2019. Edited.

The importance of blood in the human body

writing – on the date : – Last updated: 2022-06-13 17:12:01