Agranulocyte

Source: Wikipedia, the free encyclopedia.
(Redirected from
Mononuclear cell
)
blood smear surrounded by red blood cells
.

In

The distinction between granulocytes and agranulocytes is not useful for several reasons. First, monocytes contain granules, which tend to be fine and weakly stained (see monocyte entry). Second, monocytes and the granulocytes are closely related cell types developmentally, physiologically and functionally. Third, this distinction is not used by haematologists; it is an erroneous separation that has no meaning.[citation needed]

Lymphocytes are much more common in the

HIV infection). CD8+ (cytotoxic) T cells and natural killer cells are able to kill cells of the body that are infected by a virus. T cells are crucial to the immune response because they possess a unique 'memory' system
which allows them to remember past invaders and prevent disease when a similar invader is encountered again.

Reference ranges for blood tests of white blood cells, comparing mononuclear leukocytes amount (shown in yellow) with other cells.

Monocytes share the

macrophages
after they migrate from the bloodstream and enter tissue.

The granulocytes are

eosinophils, basophils, and mast cells
.

Infiltrate

Mononuclear cell infiltrates are characteristic of

graft rejection
.

Additional images

  • Blood cell lineage
    Blood cell lineage

References

  1. ^ "What Are White Blood Cells? |". www.urmc.rochester.edu. Retrieved 2022-12-22.
  2. ^ "What Are Agranulocytes? - Definition & Function - Video & Lesson Transcript | Study.com". study.com. Retrieved 2018-06-14.
  3. S2CID 415749
    .