The composition, origin, renewal, and function of blood cells.

Blood cells flow throughout the body with the flow of blood.
blood is red because red blood cells are red and it accounts for about half of the blood component.
blood, in addition to red blood cells, white blood cells and platelets, but they account for a small share, but function is very important.
below, the small editor to introduce you to the composition of blood cells, sources, updates and roles. There are three main parts of the mammalian blood cells that
blood cells: red blood cells: the main function is to transport oxygen to maintain the normal function of each organ.
white blood cells: mainly plays the role of immunity.
when pathogens, foreign bodies invade the human body, or their own aging, death cells or bad cells, white blood cells can pass through the walls of capillaries, concentrated on the lesions, and devour them.
platelets: plays an important role in the hemostatic process.
blood cells, only white blood cells have nuclei, and mature red blood cells and platelets are nuclear-free.
the source of blood cells blood cells from bone marrow hematopoietic stem cells, first by pluripotent stem cells differentiation into concentrated formation unit cells (bone marrow stem cells) and lymphoid dry growing, and then by bone marrow stem cells differentiation into the targeted stem cells of each line, after the original, infantile and other stages, development, proliferation and final lying into red blood cells, granulocytocells and mononucleocells and platelets.
lymphocytic stem cells are developed and matured through the original, infantile two stages, and then converted into progonorrhea and plasma cells respectively under the stimulation of antigens, and proliferated and matured into immune-active lymphocytes and plasma cells. the proliferation of
blood cells is done in a division way, but only infant cells have the ability to divide once they mature to a certain stage. The proliferation stops.
human hematopoietic system begins to develop during the fetal period, and after birth, hematopoietic tissue is concentrated in the bones of the whole body.
adults, hematopoietic cells mainly come from the human skull, ribs, sternum, spine, pelvis and other bone marrow, which is why the suspected blood system disease, often do the cause of bone marrow puncture, chest bone, but also commonly used bone marrow puncture site, other bones such as ribs, skull, vertebrae, due to puncture difficulties, high risk, generally less used.
blood flow ingress in the blood vessels, which we call peripheral blood, while blood in the bone marrow, which we call bone marrow blood, or "bone marrow", is the disease of most blood systems that requires bone marrow collection to assist in diagnosis.
normal, peripheral blood cells include red blood cells, white blood cells and platelets, white blood cells, but also include neutrophils, lymphocytes, mononucleoblasts, eosinophils, osteophilia cells, plasma cells, and so on, these are also known as mature blood cells.
bone marrow blood, in addition to these mature blood cell components, there are some infant cells (the ancestors of these mature cells at all levels), such as primitive and infantile granulocytes, primitive and childish red blood cells, macronuclear cells (the ancestors of platelets), and so on, these cells are called hematopoietic cells;
with the development of medicine, a small number of blood cells (from the lymphatic system), such as NK cells, dendritic cells, Langerham's cells, etc., are gradually recognized.
blood cells renew the composition of our blood, every day, then, how do blood cells renew? In the bone marrow, there is an old ancestor of blood cells: pluripotent hematopoietic stem cells.
primitive stem cells can be differentiated into two major branches: one is the cluster-forming unit cells (CFU-C), also known as bone marrow stem cells, which are multi-energy stem cells in red blood cells, neutrophils, eoseophilic granulocytes, alkaline granulocytes and platelets.
concentrated unit cells are mainly derived from bone marrow, and go through the targeted stem cell stage of each line before developing into red blood cells, pelletcells and platelets.
another lymphatic stem cell, also known as lymphatic stem cells, is the birthplace of the higher animal immune system. Its differentiation and development process is closely related to the stimulation of antigens, lymphatic stem cells are also pluripotent stem cells, which can be differentiated into two different directional stem cells. One is thymus-derived T lymphocytes, or T-cells, one is bone marrow-dependent B lymphocytes or B cells, these two cells through the corresponding antigen restimulation into the original gonorrhea cells and the plasma, respectively, and then gradually mature, respectively, called lymphocytes and plasma cells.
in some physiological or pathological cases, peripheral blood also appears in some bone marrow cells, if so, need to ask a professional diagnosis.
if the proportion or number of cell components in peripheral blood is abnormal, or if the cells that should not appear, you are prompted by an abnormality in the blood system;
blood system, is to maintain the body's normal important organs, it is always hard to work, in your excitement and fatigue, it is more to redouble efforts to meet your needs, and when you rest, blood cells are still working non-stop, to provide you with the necessary nutrients, oxygen, for you to eliminate foreign bodies and toxins, for you to stop bleeding and anticoagulant, for your healthy life.
blood cells can carry oxygen, children's blood is bright red, the older we get the color of blood, because a small child's blood cell can carry four oxygen molecules, and adult blood cells can only carry one to two oxygen molecules, blood cells will carry oxygen and nutrients to all parts of the body, if there is no oxygen and nutrients, will feel tired, will feel tired.
the function of blood cells after activation can also take away blood clots, blood lipids, blood sugar and other garbage, strengthen vascular elasticity, greatly reduce or reduce cerebral hemorrhage, cerebral thrombosis, hypertension, hyperlipidemia, high blood sugar, diabetes incidence and risk.
these rich diseases in today's middle-aged and elderly 100 people in 76 people have the disease, and the death rate is the highest, higher than cancer.
blood cells also remove free radicals from the body. there are quite a few free radicals in the
environment, most of which are inffed in the diet, such as: fried food, scorched food... Free radicals come to our bodies and become weird, causing cell mutations that turn into cancer cells.
blood cells can effectively remove cancer cells from our bodies and reduce the chance of cancer.
blood cells improve our liver function and protect our liver.
liver is the most important organ of the human body, his function is also the most complex body, if the liver is not good, the human body will not be healthy.
Chinese medicine to say that the liver is full of blood, if the blood is in a very poor state, the liver will be greatly affected.
liver, like a blood processing plant, can help purify blood, lower blood cholesterol, remove toxic substances in the blood, eliminate viruses and bacteria in the blood, help collagen and fibrin synthesis... Once the function of the liver is impaired, the body becomes weak, aging, and even dying.
above, is the composition, source, renewal and function of blood cells that you are introduced to.
blood cells play a very important role in our human body, metabolism is inseparable from the blood, and the function of blood cells is also very strong, many kinds.
and play an irreplaceable role in our bodies.
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