Fish Diseases and Management

2.2.8 The circulatory system or the Blood vascular system

The circulatory system consist of

1. Capillaries
2. Arteries
3. Veins
4. Pumping station or heart

Blood consist of (1) RBC, Red Blood Corpuscles (Erythrocytes), (2) WBC, White Blood corpuscles (leucocytes) and (3) Thrombocytes (Blood platelets). WBC consist of (i) granulocytes and (ii) agranulocytes. Granulocytes consist of (a) Eosinophils (b) Basophils and (c) Neutrophils (ii) Agranulocytes consist of (a) lympocytes and b) Monocytes.