Formed Elements in Blood

Erythrocyte (Stained Slide)

Erythrocyte (Drawing)

Erythrocyte

No nucleus, carries oxygen throughout the body

Thrombocyte (Stained Slide)

Thrombocyte (Drawing)

Thrombocyte

Cell fragments, clings to collagen fibers during coagulation

Neutrophil (Stained Slide)

Neutrophil (Drawing)

Neutrophil

most numerous, multinucleate(3), ingests bacteria

Eosinophil (Stained Slide)

Eosinophil (Drawing)

Eosinophil

increases in number during allergies, fights ingested parasitic worms or those entering from skin

Basophil (Stained Slide)

Basophil (Drawing)

Basophil

rarest WBC, releases histamine at sites of inflammation

Lymphocyte (Stained Slide)

Lymphocyte (Drawing)

Lymphocyte

nucleus occupies most of cell, helps kill tumor cells and controls immune responses

Monocyte (Stained Slide)

Monocyte (Drawing)

Monocyte

largest WBC, U shaped nucleus, when they migrate into tissues they change into Macrophages that ingest foreign material

Megakaryocyte (Stained Slide)

Megakaryocyte (Drawing)

Megakaryocyte

found in bone marrow, cell from which platelets are made

Hemocytoblast

stem cell produced in the bone marrow

Phagocytosis (Drawing)

Phagocytosis

The process by which a WBC surrounds and destroys foreign substances

Diapedesis (Drawing)

Diapedesis

the passage of WBC through the intact walls of the capillaries, most common process during inflammation