Medulla of lymph node

Medulla of lymph node
Medulla of lymph node
Schematic of lymph node showing lymph sinuses.png
Schematic of lymph node showing lymph sinuses
Latin medulla nodi lymphoidei

The medulla of lymph node, or medullary sinus, is the central portion of the lymph node.[1]

There are two named structures in the medulla:

  • The medullary cords are cords of lymphatic tissue, and include plasma cells, macrophages, and B cells
  • The medullary sinuses (or sinusoids) are vessel-like spaces separating the medullary cords. The Lymph flows into the medullary sinuses from cortical sinuses, and into efferent lymphatic vessels. Medullary sinuses contain histiocytes (immobile macrophages) and reticular cells.

See also

  • Medulla

References

External links


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Look at other dictionaries:

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  • Fiber — The parts of plants that cannot be digested, namely complex carbohydrates. Also known as bulk or roughage. Complex carbohydrates from plants are rich in starch and fiber. Examples of plants that provide complex carbohydrates (fiber) are fresh… …   Medical dictionary

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