Comprehensive guide to the 5 types of WBC in blood: neutrophils, lymphocytes, monocytes, eosinophils, and basophils. Learn their functions, normal ranges, clinical significance in infections and disorders. Includes comparison tables and health implications.

Discover where lymph nodes are located throughout your body with our detailed map. Learn how to check them, when swelling signals danger, and key facts about their role in your immune system.