Leukocytes Agranulocytes Monocytes

Blood smears

Monocyte - Greater increase

Leukocyte Agranulocyte Monocyte

* It is presented as the greatest of leukocytes.

* Absence of granules, bluish cytoplasm.

* Core reniform (kidney-shaped).

Black Circle - Monocyte

Black Arrow - Erythrocyte

Red Arrow - Platelets

Leukocytes Agranulocytes Lymphocytes

Blood smears

Lymphocyte - Greater increase

Leukocyte Agranulocyte Lymphocyte

*These are usually classified as small, medium or large. Medium and large lymphocytes are generally seen mainly in fibrous connective tissue and only occasionally in the circulation bloodstream

Black Circle - Lymphocyte

Black Arrow - Erythrocyte

Red Arrow - Platelets

Lymphocyte - Greater increase

Leukocyte Agranulocyte Lymphocyte

*These are usually classified as small, medium or large. Medium and large lymphocytes are generally seen mainly in fibrous connective tissue and only occasionally in the circulation bloodstream

Black Circle - Lymphocyte

Black Arrow - Erythrocyte

Red Arrow - Platelets

Leukocytes Granulocytes Basophils

Blood smears

Basophil - Greater increase

Leukocyte Granulocyte Basophil

*They have a pale nucleus that is usually hidden by granules.

Black Circle - Basophil     

Black Arrow - Erythrocyte

Red Arrow - Platelets

Leukocytes Granulocytes Eosinophils

Blood smears

Eosinophil - Greater increase

Leukocyte Granulocyte Eosinophil

*These have large granules

*A prominent nucleus that is divided into two lobes

*Orange cytoplasm

Black Circle - Eosinophil  

Black Arrow - Erythrocyte

Red Arrow - Platelets

Eosinophil - Greater increase

Leukocyte Granulocyte Eosinophil

*These have large granules

*A prominent nucleus that is divided into two lobes

*Orange cytoplasm

Black Circle - Eosinophil  

Black Arrow - Erythrocyte

Red Arrow - Platelets

Leukocytes Granulocytes Neutrophils

Blood smears

Neutrophils - Greater increase

Leukocytes Granulocytes Neutrophils

* fine cytoplasmic granules

*variety of nuclear shapes

Black Circle - Neutrophils

Black Arrow - Erythrocyte

Neutrophils - Greater increase

Leukocytes Granulocytes Neutrophils

* fine cytoplasmic granules

*variety of nuclear shapes

Black Circle - Neutrophils

Black Arrow - Erythrocyte

Red Arrow - Platelets

 Neutrophils - Greater increase

Leukocytes Granulocytes Neutrophils

* fine cytoplasmic granules

*variety of nuclear shapes

Black Circle - Neutrophils

Black Arrow - Erythrocyte

Red Arrow - Platelets

Neutrophils stick - Greater increase

Leukocytes Granulocytes Neutrophils stick

* fine cytoplasmic granules

*not segmented core

Black Circle - Neutrophils stick

Black Arrow - Erythrocyte

Red Arrow - Platelets

Platelets

Blood smears

Platelets 100x

Platelets are disc-shaped cells circulating in the blood. They are involved in the cellular mechanisms of primary haemostasis leading to the formation of blood clots.

The normal number of platelets in the blood is 150,000 - 400,000 platelets per microliter (mcL). Normal value ranges may vary slightly. Some lab use different measurements or may test different specimens. Talk to your doctor about your test results.

Red Circles: Platelets

Black Arrows: Erythrocyte

Erythrocytes

Blood smears

Erythrocytes/ Red Blood Cells (RBCs) - 100x

An erythrocyte is a disc-shaped cell with a thick rim and a thin sunken centre and has two main functions:

1- To pick up oxygen from the lungs and deliver it to tissues elsewhere

2- To pick up carbon dioxide from other tissues and unload it in the lungs

Normal RBC range is:

Male: 4.7 to 6.1 million cells per microliter (cells/mcL)

Female: 4.2 to 5.4 million cells/mcL

Arrow - Platelets