Lymph Node Structure and Function - Medical Diagram Explained #3324659 (License: Personal Use)

This diagram illustrates the internal architecture of a lymph node, featuring the fibrous capsule, cortical and medullary regions with lymphoid follicles, and vascular supply (arteries in red, veins in blue). Two insets demonstrate how lymphatic valves prevent backflow (closed vs. open states) and depict phagocytic immune cells capturing pathogens. The image serves as an educational tool for understanding lymphatic filtration and immune surveillance.

Used in medical textbooks, anatomy courses, immunology resources, and health education websites to explain how lymph nodes filter lymph and initiate immune responses; targets students, educators, and healthcare professionals seeking visual reinforcement of lymphatic system concepts.