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

  1. ^ "Definition: medulla of lymph node from Online Medical Dictionary". http://cancerweb.ncl.ac.uk/cgi-bin/omd?medulla+of+lymph+node. Retrieved 2008-10-19. 

External links

v · d · eLymphoid system (TA A13.1–2, TH H3.10, GA 8 and 9)
Primary lymphoid organs
Secondary lymphoid organs
Spleen
(process blood)
Palatine · Lingual · Pharyngeal · Tubal
Tonsillar crypts

lymph flow: Afferent lymph vessels · Cortical sinuses · Medullary sinuses · Efferent lymph vessels

T cells: High endothelial venules

B cells: Primary follicle/Germinal center · Mantle zone · Marginal zone

layers: Capsule/Trabeculae · Subcapsular sinus · Cortex · Paracortex · Medulla (Medullary cord) · Hilum
MALT
(process mucosa)
GALT · Peyer's patch · Germinal center

M: LMO

anat(h, u, t, a, l)/phys/depv

noco/cong/tumr

proc

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Look at other dictionaries:

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