Illustration of a sectioned human lymph node

Illustration of a sectioned human lymph node

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Credit: FRANCIS LEROY, BIOCOSMOS/SCIENCE PHOTO LIBRARY.

Caption: Illustration based on a scanning electron micrograph of a sectioned human lymph node. Lymph nodes are encapsulated, kidney shaped structures; most occur at intervals along lymph vessels. Functions include "filtration" of lymph by scavenging macrophages, production & storage of both antibody-secreting B-lymphocytes involved in humoral immunity, and of T-lymphocytes involved in cell-mediated immune response. A labyrinth of cells and cell processes in the inner medullary sinuses serves to slow the flow of fluid through the node & facilitates actions of lymphatic cells involved in the immune response processes. Magnification: x700 at 35mm size (approx.)

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Keywords: anatomy, artwork, human body, images, immune, in lymph node, lymph, lymph node, lymphatic, macrophage, magnified image, microscopic photos, subjects, system

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