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The miracle of a life sustaining fluid---blood!
Humans can't live without blood. Without blood, the body's organs couldn't get the oxygen and nutrients they need to survive and maintain the normal function operation; we couldn't keep warm or cool off, fight against infections, or get rid of our own metabolite waste products. Without enough blood, we'd weaken and die. Blood is a major factor in life-sustaining. A deficiency in the supply or quality of blood will impair the quality of life and even compromise life itself. Therefore, the nature of the blood is the fundamental basis for health. |
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Production of blood cells
Each of the human body's blood is produced by the body itself, not from the maternal blood into the fetal blood vessels. Human embryonic hematopoietic began in the 3rd weeks, at this stage there is only little organ formation, an embryonic tissue called the yolk sac of the first to take up the responsibility of haematopoiesis. At the 6th week of human embryo, human organs are formed, liver starting to take up blood formation. As human embryo into the 3rd months, the spleen is the main blood-forming organs. When human embryo into the 4th months, bone marrow starts of hematopoietic, which is the most important hematopoietic tissue in the human? When the embryo to the first five months and later, liver and spleen hematopoietic function gradually decreased, bone marrow hematopoietic function increased rapidly. After birth, liver, spleen stop blood formation, bone marrow hematopoietic assume full responsibility, but the spleen are still lymphocytes making organ for life. Blood cells, including red blood cells, white blood cells, platelets, etc., they carry out their duties, but they all come from the same kind of cells - multi-functional stem cells. By this cell proliferation, differentiation and maturity before they flow into the vessel where a variety of terminal blood cells. In babies and young children, blood cells are made within the bone marrow (the soft tissue inside our bones) of lots of bones throughout the body. But, as kids get older, blood cells are made mostly in the bone marrow of the vertebrae (the bones of the spine), ribs, pelvis, skull, sternum (the breastbone), and parts of the humerus (the upper arm bone) and femur (the thigh bone). |
3 weeks fetus, yolk sac of the first to take up the responsibility of hamatopoiesis |
6 weeks fetus, liver starting to take up blood formation |
3 months fetus , the spleen is the main blood-forming organs |
Human embryo into 4th months and later bone marrow responsible to start of hematopoietic |
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The major components of blood
Generally, 7-8% of human body weight is from blood. In adults, this amounts to 4-6 litres of blood. Blood is a highly specialized tissue composed of many different kinds of components. Four of the most important ones are red blood cells, white blood cells, platelets, and plasma. All humans produce these blood components.
Blood is bodily fluid that delivers necessary substances to the body's cells such as nutrients and oxygen while transports waste products away from those same cells.
In vertebrates, it is composed of blood cells and blood plasma. Blood plasma travel through the circulatory system suspended in a yellowish fluid. Plasma, which comprises 55% of blood fluid, is mostly water (90% by volume), and contains dissolved proteins, glucose, mineral ions, hormones, carbon dioxide (plasma being the main medium for excretory product transportation). Blood cells, in comprise of 40-45% of the total volume of blood. The blood cells present in blood are mainly red blood cells (also called RBCs or erythrocytes) and white blood cells, including leucocytes and platelets. The most abundant cells in vertebrate blood are red blood cells.
Whole blood is a mixture of blood cells and plasma. The blood that flows through the network of veins and arteries is called whole blood, and it contains three types of blood cells:
- Red blood cells (RBCs)
- White blood cells (WBCs)
- Platelets
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In the blood cells, red blood cell count up the most, normal male red blood cell count for 400-550 million / mm3and 350-500 million / mm3 for females, water accounted for 65-68% in the red blood cells, hemoglobin accounted for 30-33%, adult male hemoglobin normal range is 120-160 g / l and for female is 110-140 grams / liter. If the red blood cell in men and women are lower than the above normal range or the haemoglobin content less than 10 grams it categorise as anemia.
In the physical blood cells component, white blood cells are the least number among blood cells. White blood cells of normal adult are 4000-10000 pieces / cubic millimeter. In the total number of white blood cells, neutrophils accounted for 50-70% , lymphocytes accounted for 22-40%, mononuclear cells accounting for 4-8%, eosinophils accounted for 1-4%, basophils accounted for 0 -- 1%. Platelets are important component in the blood cells. Normal platelet count of 10-30 million / mm3, if less than 10 million, is very prone to a number of different levels of bleeding. |
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What are red blood cells ?
Red blood cells (RBCs also knows as erythrocytes) develop to mature erythrocytes in about 7 days. When matured, these cells live in blood circulation for about 4 months ( 120 days). Red blood cells are the transporters of oxygen and carbon dioxide in the blood. It also responsible to delivers necessary substances such as nutrients to the body's cells at the same time transports metabolite waste products away from those same cells. At the end of their life-span, they become senescent and eventually degraded by the spleen and the Kupffer cells in the liver before they are removed from circulation. In order to maintain the blood volume, each day, the body produces new red blood cells to replace those that die or are lost from the body. |
Red blood cells as transporter for nutrients, gases, water and own body waste products. |
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What are white blood cells?
White blood cells (WBCs), or leucocytes are cells of the immune system defending the body against both infectious disease and foreign materials. They can move in and out of the bloodstream to reach affected tissues. Leukocytes are found throughout the body, including the blood and lymphatic system. These cells are not formed in the initial fetal blood and form much later in development.
Body can increase production of WBCs to fight infection when there is an infection. There are several types of WBCs, and their life spans vary from a few days to months. At the end of it life span it will degrade before remove from the circulation. New cells are constantly being formed in the bone marrow.
White blood cells called granulocytes and lymphocytes travel along the walls of blood vessels. They fight germs such as bacteria and viruses and may also attempt to destroy cells that have become infected or have changed into cancer cells. After the body has been challenged by some infections, lymphocytes "remember" how to make the specific antibodies that will quickly attack the same germ if it enters the body again. |
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Leucocytes fight against virus / bacteria infection |
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What are platelets?
Platelets (also called thrombocytes) are tiny oval-shaped cells made in the bone marrow. They function to initiate the mechanism of blood clotting. When a blood vessel breaks, platelets gather in the area and help seal off the leak. Platelets survive only 7-9 days in the bloodstream and are constantly being replaced by new cells.
Platelets and clotting factors work together to form solid lumps to seal leaks, wounds, cuts, and scratches and to prevent bleeding inside and on the surfaces of our bodies. When the body was bleeding, the platelet quickly gathers at the rupture blood vessel and attempt to block the blood flow. They release of adrenaline, 5 - hydroxytryptamine and other substances have a role in blood vessel contraction, so that damage to blood vessels closed to varying degrees, reducing blood flow. Viscous deformation of a large number of platelet accumulation in the wound adhesion and forming clots, blocking the wound to stop the bloodshed. |
When there is bleeding, platelets help in blood clotting process and stop the bleeding. |
The life cycle of blood cells
Red blood cells : 120 days
White blood cells : 7-14 days
Platelets : 7-9 days |
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Diseases come from acidic blood
The body's normal pH value range from 7.35-7.45, approximately 7.40, weakly alkaline solution. Blood that has pH lower than 7.35 is too acidic whereas blood pH above 7.45 is too alkaline. Blood pH value out of the normal range will affected the normal function operation of visceral organs. Besides that, acidity blood will make the blood began to thick. Thick blood will affect the blood into the vicious circle and may easily lead to blood vessel obstruction. Therefore, body cells will not get enough nutrient and starting to be aging and eventually death. Accumulation of body metabolites waste due to the poor blood circulation is main factor to develop chronic diseases. |
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| Healthy blood |
Healthy blood flow smooth in the blood vessel |
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| Acidic blood |
Occlusion of acidic blood in blood vessel |
Acidity blood can cause...
Hands and feet numbness, bad breath, fatigue, memory loss, nocturia, easy cold, hemorrhoids, indigestion, bloating, infertility, dandruff, afraid of the cold, menstrual disorders, frequent urination, acne, easy bruising, difficulty in wound healing, overweight, hair loss, headache, dizziness, constipation, shoulder pain, insomnia, cramps, arthritis, skin diseases, high cholesterol, high blood sugar, high blood pressure, uric acid, kidney failure, cardiovascular disease, stroke and others…
Why blood becomes acidic?
- Unhealthy eating habit and living lifestyle
- Lack of exercise
- Stress
- Pollution
How to improve?
- Healthy eating habits and living lifestyle
- Regular exercise
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