Can anyone help me describe what platelets look like?

The average diameter of human platelets is about 2 4 microns, the thickness of microns, and the average volume is 7 cubic microns.

Produced by megakaryocytes in the hematopoietic tissue of the bone marrow. Pluripotent hematopoietic stem cells undergo directional differentiation in hematopoietic tissues to form primitive megakaryocytes, which in turn further become mature megakaryocytes. Many depressions form on the surface of the mature megakaryocyte membrane, which extend into the cytoplasm, and the adjacent depression cell membrane and platelets fuse with each other in the deep depression, separating part of the cytoplasm of megakaryocytes from the mother.

Finally, these components that are separated from the cytoplasm of megakaryocytes surrounded by the cell membrane detach from megakaryocytes and pass through the sinuses in the hematopoietic tissue of the bone marrow and enter the blood circulation to become platelets.

Normal platelet value: 100-300 *10 9 lPlatelets are disc-shaped, ranging in diameter from 1 4 μm to 7 to 8 μm, and vary greatly from individual to individual (5 to 12 m3 μm).

Platelets are motile and deformed, so they are polymorphic when observed by conventional methods.

The function of platelets is mainly to promote hemostasis and accelerate blood clotting, and platelets also have the function of maintaining the integrity of the capillary wall. In the process of hemostasis and coagulation, platelets have the functions of forming blood clots, blocking wounds, and releasing various factors related to coagulation. At the rupture of small blood vessels, platelets aggregate into platelet plugs, blocking the rupture, and releasing adrenaline, serotonin and other substances that have the effect of constricting blood vessels, which is one of the important factors to promote blood clotting.

Platelets also nourish and support capillary endothelial cells, making capillaries less fragile.

Are you talking about platelets?

It is a type of blood cell. Responsible for stopping the bleeding.

You can find a detailed introduction from the encyclopedia.

The role of platelets is to stop bleeding and participate in the coagulation process in the body, and antiplatelet drugs are to prevent cardiovascular events and are the cornerstone of coronary heart disease.

Hello! Platelets are small pieces of cytoplasm shed from the aggregate cells of the bone marrow, although the volume of platelets is small but the number is large, arranged along the blood vessel wall in the blood flow, forming a protective layer of the blood vessel wall, reducing the fragility and permeability of capillaries, and the main function is hemostasis and coagulation.

Often, when people see bleeding, they get nervous and worried! Controlling the normal circulation of blood in the blood vessels and preventing bleeding from running out of the blood vessels requires the cooperation of three aspects: blood vessels, platelets, coagulation system, etc.

Platelet values can be affected by many factors, such as fatigue, lack of attention to diet, colds, bumps, mood swings, poor sleep, hormone reduction, etc., which can cause a sharp drop in platelets.

The fastest can reach 0 within a day, platelets below 20, there is a certain risk, it is necessary to be hospitalized with Western medicine rescue**, but Western medicine can only be a temporary treatment of the symptoms but not the root cause.

Platelets mainly play hemostatic coagulation function, low platelets will have the possibility of spontaneous bleeding, mild is subcutaneous bleeding, that is, **purpura, or gum bleeding, nosebleed, serious visceral bleeding or intracranial hemorrhage, is life-threatening. Dr. Gao.

A type of blood cell that participates in hemostasis and plays an important role in hemostasis.

Platelets are small pieces of cytoplasm that are detached from the cytoplasm of mature megakaryocytes in the bone marrow. Although megakaryocytes are the least abundant in the hematopoietic cells of the bone marrow, accounting for only the total number of nucleated cells in the bone marrow, the platelets they produce are extremely important for the body's hemostatic function.

When blood loss occurs due to vascular trauma, the functional activities of platelets in the process of physiological hemostasis can be roughly divided into two stages: the first stage is mainly after the trauma, platelets quickly adhere to the wound site and gather into a clump to form a softer thrombostasis; The second segment is mainly to promote blood clotting and form a solid hemostatic embolus.

The substance that causes blood to clot, which is present in the blood, probably looks like this.

Platelets are not actually "plates", they do not have a complete cell structure, no nucleus, they are small pieces of cytoplasm shed from megakaryocytes in the bone marrow, with an intact cell membrane on the surface, and are the smallest cells in the blood. Platelets are shaped like an olive or disc under an electron microscope, and they are also fusiform or irregularly shaped. Platelets are long and wide.

The platelet content in the blood of a normal person is (100 300) and platelets at 10° are usually stored in the spleen.

Most people know that red blood cells in the blood are very small, but platelets are actually smaller than that? It has only 1 8 of red blood cellsIn the Blood Cell family, it can be called a "little man".

The number of platelets is not very large, and there are about 100,000 to 300,000 per cubic millimeter of blood in a normal human body?

We are used to calling it platelets, but in fact, platelets are not like a "plate", they are mostly spheres connected on two sides, and some are irregular "fragments".Platelets are disc-shaped, ranging from 1 4 microns to 7 8 microns in diameter, and vary greatly from person to person. Platelets are motile and deformed, so they are polymorphic when observed by conventional methods. Platelet.

Platelets are produced by megakaryocytes in the body's bone marrow, and a single megakaryocyte can produce many sibling platelets at the same time, although it is small, but it is important!

After being produced from the bone marrow, it is released into the blood vessels, acting as a guard to protect the blood from going out willfully; Once the blood vessel is broken, platelets will take the lead and rush to the scene, adhere to the local area, continue to gather and tighten, and then release information to promote the coagulation system to participate in the battle, so that the broken blood vessel can be repaired and bleeding can be controlled.