How long does inflammation last?
summary
Neutrophil is in Wright staining blood smear, the cytoplasm is colorless or very light light red, there are many small (0.2 ~ 0.4 μ m) light red or light purple particles. The nucleus was rod-shaped or 2-5-lobulated, and there were filaments between the leaves. Neutrophils are chemotactic, phagocytic and bactericidal. Let's share my experience with you.
How long does inflammation last?
Most of the granulocytes are neutrophils. There are about 4500 neutrophils per microliter of blood. Neutrophils are also called polymorphonuclear leukocytes because of their special nuclear morphology. Neutrophils stay in the blood vessels for an average of only 6-8 hours. They quickly pass through the wall of blood vessels and enter the tissues to function, and they do not return to the blood after entering the tissues.
About half of the neutrophils in the blood vessels circulate with the blood flow, and the white blood cell count only reflects the condition of this part of neutrophils; The other half was attached to the wall of small vessels. At the same time, there are about 250 billion mature neutrophils in the bone marrow, which can mobilize a large number of neutrophils into the circulating blood flow when the body needs them.
The number of white blood cells was the largest. The percentage of white blood cells was 50-70%, and the cell diameter was 10-12% µ m。 The nucleus is deeply stained, curved, rod-shaped (horseshoe shaped) or lobulated. The lobulated nucleus is usually 2-5 leaves, and there is a thin narrowing between the leaves.
matters needing attention
Neutrophils play an important role in defense because of their active deformation and phagocytosis. The phagocytic objects were mainly bacteria and foreign bodies. After phagocytizing and treating a large number of bacteria, neutrophils also die and become purulent cells. Neutrophils enter the blood from the bone marrow, stay for 6-8 hours, then leave and survive in connective tissue for 2-3 days.
