Welcome to the course guide for Bio 686: Immunology. It collects the materials discussed in the lecture by Courtney Walsh, Research & Instructional Services Librarian (email@example.com).
Lymph node, light micrograph
Lymph node. Coloured light micrograph of a section through a lymph node. A lymph node filters pathogens from lymph fluid, a watery liquid that surrounds the tissues of the body. The germinal centre of the node (pink) houses B lymphocytes (a type of white blood cell) and antibodies, which play important roles in the immune system.
STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY / Universal Images Group
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