leukocytes (also called white blood cells) are a heterogeneous group of blood cells are the cellular effectors of the immune response and are involved in defending the body against foreign substances o agentes infecciosos (antígenos). Se originan en la médula ósea y en el tejido linfático.
Características:
Los leucocitos son células móviles que se encuentran en la sangre transitoriamente, así, forman la fracción celular de los elementos figurados de la sangre. Son los representantes hemáticos de la serie blanca. A diferencia de los eritrocitos (glóbulos rojos), no contienen pigmentos, por lo que se les califica de glóbulos blancos.
Son células con núcleo, mitocondrias y otros orgánulos celulares. Son capaces de moverse libremente by pseudopodia. Their size ranges from 8 to 20 microns (micrometer). Its lifetime varies from several hours, months and even years. These cells can exit the blood vessels through a mechanism called diapedesis (extended their cytoplasmic content), this allows them to move out of the blood vessel and to have contact with the tissues inside the body.
Son células con núcleo, mitocondrias y otros orgánulos celulares. Son capaces de moverse libremente by pseudopodia. Their size ranges from 8 to 20 microns (micrometer). Its lifetime varies from several hours, months and even years. These cells can exit the blood vessels through a mechanism called diapedesis (extended their cytoplasmic content), this allows them to move out of the blood vessel and to have contact with the tissues inside the body.
Depending on the shape of the nucleus are classified as non-core
leukocytes or mononuclear lobes:
Lymphocytes Monocytes
Lobed nucleus leukocytes or polymorphonuclear neutrophils
Eosinophils Basophils
observation through the microscope has allowed countries according to their staining characteristics in:
Granulocytes: shows granules in the cytoplasm, rounded and lobed nucleus formed in stem cells Bone marrow eosinophils, basophils and neutrophils.
leukocytes or mononuclear lobes:
Lymphocytes Monocytes
Lobed nucleus leukocytes or polymorphonuclear neutrophils
Eosinophils Basophils
observation through the microscope has allowed countries according to their staining characteristics in:
Granulocytes: shows granules in the cytoplasm, rounded and lobed nucleus formed in stem cells Bone marrow eosinophils, basophils and neutrophils.
agranulocyte: no granules in their cytoplasm, lymphocytes, monocytes and macrophages.
A Despite these classifications and differences between leukocytes, all related to the body's defense mechanisms. Granulocytes and monocytes destroy phagocytosed microorganisms while lymphocytes produce antibodies against them.
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