Blood is the fluid of life that takes place within the human body and living organisms and can not be dispensed with or live without it. Blood also passes through the bodies of animals that we know like dogs, cats and insects, but does not bite into bodies like sponges and jellyfish. Blood is red because red blood cells are absorbed.
In this article, we will discuss all aspects of blood, its components and its usefulness.
Blood consists of four parts:
1) plasma
2) Red blood cells
3) White blood cells
4) platelets
We will address each type in detail:
First
Plasma It is a substance characterized by liquidity and viscosity is very transparent, and color is more inclined yellowing.
The importance of plasma Plasma is very important in the transfer of water and salts, as well as the transfer of various food such as sugars, vitamins, hormones, proteins, and many more, so they are found in the blood well
Plasma components Plasma consists of 90% water, 10% soluble, 2% salts, 1% carbohydrates and fats, 1% antibodies
Plasma feature The most important feature of plasma is that it has no shape, no specific form and sometimes no specific shape
Second
Red blood cells The blood is in the form of tablets, has a bottom in the sides, one of the most important functions that they carry gases
Components of red blood cells Red blood cells contain the hemoglobin that is responsible for supplying the human body with oxygen. The color of red and the reason for the presence of hemoglobin in them
The importance of red blood cells The body carries oxygen to the tissues of the body taking carbon dioxide. Enzymes that lie in the blood corpuscles are better able to perform chemical processes. These cells do not last long as they break down in the liver and spleen and then resort to bile extract to share with them in their contents
The advantage of red blood cells It does not have a nucleus, it does not divide or multiply, it stays the same, and the number of red blood cells in a man is about five million cubits per millimeter. The woman is four and a half million in millimeters
These cells consist of the fourth week of pregnancy in the fetus then in the sixth month grow in the liver and spleen, and in the last months of pregnancy grow in the bone marrow.
Third
White blood cells Called white blood cells, its function is very important to the human body, where it protects from diseases, which are found in the blood in contrast to the red blood cells that exist frequently. And there is a nucleus inside, so we find them in many sizes and forms as well as they are larger than red blood cells.
Components of white blood cells Consists of three sections: granulocytes, lymphocytes, monocytes. Where granulocytes and monocytes are concerned with human protection against germs, and lymphocytes have a role in immune immunity.
Importance of white blood cells Kill bacteria, attack and fight inflammation and some harmful substances to the body.
The advantage of white blood cells Pezophil secrete heparin, which prevents blood clotting and defense against invasion of microbes.
Fourthly
Platelets It is a cycloplasmic material or bodies that do not have a nucleus formed and formed in the bones, which are found in the blood, which are always broken when approaching the air where the blood clots and breaks. Of its qualities that it does not have a specific form when they are in the blood, they are in the blood naturally and this has an important benefit as it does not cause bleeding in the blood any harm
The importance of platelets Is based on stopping the bleeding of the blood and that when healed the wound works to stop the bleeding of the gonorrhea, and take its course in the blood at a constant speed does not change, the main roles that it is working to convert the liquid protein to solid material,
Platelet Advantage
It is made up of rigid strands formed around the human skin to prevent blood from leaving the skin. Also, it does not last long as it breaks down in the liver and spleen every 10 days and it regenerates again. So platelets are non-cellular substances that are not cells that always break down.
There is no self-storage of blood in the human body. The blood parts must be constantly changed and the production of blood is the task of substances called growth factors of the blood components.
Where it maintains the supply of the body by:
1) Regulation of the volume of blood components:
Plasma size is associated with albumin. If the amount of albumin decreases below normal, the plasma goes into the tissue. In contrast, red cells are directly proportional to the amount of oxygen in the body. The number of leukocytes and thrombocytes increases and decreases depending on the body’s need. For example, the occurrence of wounds and inflammation to increase the number of leukocytes against bacteria, as well as the occurrence of acute bleeding, which leads to the high number of thrombocytes, and thus increase the blood capacity to form the clot.
2) Control bleeding:
The number of leukocytes and thrombocytes is dependent on the body’s need. For example, the occurrence of wounds and infections to increase the number of leukocytes to defend against germs, similar to the occurrence of acute bleeding leading to the high number of thrombocytes, thus increasing the ability of blood to form the clot.
3) Compensation for blood derivatives consumed:
The erythrocytes survive about 120 days. Platelets are approximately 10 days. The leukocytes are different in their life cycle. They are only modified for several hours while some lymphocytes live for several years.
1) regulate body temperature
2) Immunity
3) Nutrition
4) Breathing process
5) Water balance of the body
6) The output process
7) Regulate the metabolism
8) Preserving the nominal pressure of blood and other tissues
Blood is used in medicine to transfer blood to a sick or injured person to save it from death. The blood bank collects the blood of donors and stores it in clean, sterile bags containing preservatives and chemicals that prevent clotting in general and remain intact for 21-49 days.
Blood tests are divided into:
1- General survey tests.
It is calculated according to the number of red, white and hemoglobin cells in the blood and measures the volumetric fraction of blood cells to the size of the rest of the blood.
2. Diagnostic tests.
These blood tests to see if there are some diseases. Such as high blood sugar, diabetes, or kidney disorder, high cholesterol or anemia.
In the end, blood is the river of life that walks in human veins. With every precision of heart beats, 20% of the blood travels from the heart to the brain directly carrying oxygen, since the day the fertilization of the egg through the sperm.