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medulla of thymus

^ http://purl.obolibrary.org/obo/UBERON_0002124

Medullary portion of thymus. The reticulum is coarser than in the cortex, the lymphoid cells are relatively fewer in number, and there are found peculiar nest-like bodies, the concentric corpuscles of Hassall. These concentric corpuscles are composed of a central mass, consisting of one or more granular cells, and of a capsule formed of epithelioid cells. They are the remains of the epithelial tubes, which grow out from the third branchial pouches of the embryo to form the thymus. Each follicle is surrounded by a vascular plexus, from which vessels pass into the interior, and radiate from the periphery toward the center, forming a second zone just within the margin of the medullary portion. In the center of the medullary portion there are very few vessels, and they are of minute size. [ http://en.wikipedia.org/wiki/Thymus#Medulla ]

Synonyms: thymus medulla, thymus gland medulla, medulla of thymus gland

Term info

database cross reference
Subsets

efo_slim, pheno_slim, human_reference_atlas

id

UBERON:0002124

prefLabel

Medulla of thymus

present in taxon

http://purl.obolibrary.org/obo/NCBITaxon_7955, http://purl.obolibrary.org/obo/NCBITaxon_9606