Eosinophils, Basophils, Monocytes

What is the characteristic nucleus of eosinophils?

Bilobed nucleus with large eosinophilic granules.

What is the main role of eosinophils?

Defense against parasites and involvement in allergic reactions.

What substances are found in basophil granules?

Histamine,

heparin,

serotonin,

chemotactic factors.

What type of receptor is present on the membrane of basophils and mast cells?

IgE receptor.

What are the key features of monocytes?

Largest blood cells with kidney-shaped nucleus,

lysosomes,

and secretion of cytokines, enzymes, and ROS.

What do monocytes become in tissues?

Macrophage