Blood

Structure

92% water, with different salts and proteins.

Function

To dissolve and transport nutrients, wastes, water and CO2.

Carries antibodies to fight infections

Carries fibrinogen to help with blood clotting.

Structure

Smaller than red blood cells.

Function

Blood clotting, specifically at the site of tissue injury.

Structure

Do not have nuclei.

Double concave shape.

increases surface area to volume proportion

Produced in red bone marrow.

Contain hemoglobin.

Function

Transport oxygen.

Structure

Have nuclei.

Produced in red bone marrow.

Larger than red blood cells.

Less than red blood cells.

Function

Fight infections.

Agranulocytes

Structure

Kidney-shaped nucleus

Gray-blue cytoplasm

Function

Develop into macrophages (eat cellular debris and microscopic foreign bodies in tissues)

Structure

Spherical or indented nucleus

Thin rim of pale blue cytoplasm

Function

Immunological processes:
a) direct cell attack
b) antibodies

Granulocytes

Structure

Multilobed nucleus

Pale red and blue cytoplasmic granules

Function

Phagocytize bacteria

Structure

Bilobed nucleus

Red cytoplasmic granules

Function

Kill parasitic worms

Play a complex role in allergy and asthma

Structure

Bilobed nucleus

Large purplish-black cytoplasmic granules

Function

Release histamine and other mediators of inflammation

Contain heparin, an anticoagulent