The Medulla is the inner region of a lymph node. It contains B cells, plasma cells, and macrophages.
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The only method to identify whether or not a lymph node has cancer cells, is to surgically remove the node and perform examination with a microscope to detect abnormal cancer cells.
The occipital lymph node is part of the lymphatic system that is located on the back of the head. It produces white blood cells and lymph.
Afferent lymphatic vessels bring lymph into a lymph node. These vessels help transport lymph, which contains immune cells and waste products, into the node for filtering and processing.
if bacteria enter a wound and are not ingested by the white cells of the blood or lymph,they will be carried in the lymph to a lymph node and white cells there will ingest them
A sentinel lymph node is the first lymph node that drains a cancer. If a cancer has not spread to the first draining lymph node near a cancer, there is a high likelihood it has not spread elsewhere.
Lymph nodes have efferent lymphatic vessels that drain lymph away from the node. These vessels carry filtered lymph containing immune cells and waste products back into the bloodstream.
A lymph node.
T cells
lymph node
deep in the cortex.