What are leukocytes doing?
White blood cells are white blood cells. They are the basis of human immunity. Consider what leukocytes do for a person. Their main purpose is to protect the body.
Types and functions of leukocytes
Leukocytes are granular or non-granular. Different types of white blood cells are designed to perform different tasks. Granular leukocytes are also called granulocytes. They have a granular core structure. They have the following divisions:
Neutrophils are cellular immunity. Their main function is phagocytosis - the ingestion and dissolution of bacteria and viruses in the human body. In order for phagocytosis to take place, neutrophils produce the enzyme lysozyme, as well as the antiviral substance interferon.
Neutrophils also have several types:
- Segmental (Mature)
- Band nuclear (not quite mature)
- Young (not fully mature)
The main function of eosinophils is to protect against allergies.They are used to absorb mediators - active substances that can be released during an allergic reaction. One of them is histamine.
Basophils are involved in delayed immunological reactions. Moreover, it may be inadequate allergic reactions.
Non-granular leukocytes are also called agranulocytes. They have a non-granular core structure. Agranulocytes, in turn, have the following divisions:
Lymphocytes are the basis of humoral immunity. With their help, antibodies are produced for a specific antigen. Such a process occurs during the ingestion of antigens: viruses, bacteria, foreign protein, etc. Antibodies and antigens together form an indivisible complex that cannot be dissolved. It is further excreted from the body. Monocytes have the ability to turn into macrophages over time. They take part in cellular immunity and humoral.