National Cancer Institute Thesaurus

Last uploaded: July 2, 2026
Id http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C12433
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C12433
Preferred Name

Thymus Gland
Definitions
A bi-lobed organ surrounded by a connective tissue capsule. It is located in the upper anterior portion of the chest, behind the sternum. It is composed predominantly of lymphocytes and fewer epithelial cells. Connective tissue septa separate the lobes into lobules. The lobules contain an outer portion (cortical zone) which is rich in lymphocytes and an inner portion (medullary zone) which is rich in epithelial cells. It is an organ essential for the development of the immune system. Its function is the maturation of the progenitor lymphoid cells to thymocytes and subsequently to mature T-cells. It reaches its greatest weight at puberty and subsequently begins to involute.
Synonyms
thymus gland
thymus organ
Thymus gland structure (body structure)
Thymus Gland
Reticuloendothelial System, Thymus
THYMUS GLAND
THYMUS
Thymus
thymus
Type http://www.w3.org/2002/07/owl#Class

All Properties

label
Thymus Gland
prefixIRI
Thesaurus:C12433
code
C12433
DEFINITION
A bi-lobed organ surrounded by a connective tissue capsule. It is located in the upper anterior portion of the chest, behind the sternum. It is composed predominantly of lymphocytes and fewer epithelial cells. Connective tissue septa separate the lobes into lobules. The lobules contain an outer portion (cortical zone) which is rich in lymphocytes and an inner portion (medullary zone) which is rich in epithelial cells. It is an organ essential for the development of the immune system. Its function is the maturation of the progenitor lymphoid cells to thymocytes and subsequently to mature T-cells. It reaches its greatest weight at puberty and subsequently begins to involute.
ALT_DEFINITION
A primary lymphoid organ generally located in the mediastinum near the thoracic inlet and/or along lateral aspects of the neck.
An organ that is part of the lymphatic system, in which T lymphocytes grow and multiply. The thymus is in the chest behind the breastbone.
Anatomical structure of largely lymphoid tissue that functions in cell-mediated immunity by being the site where T cells develop.
Is_Value_For_GDC_Property
Legacy Concept Name
Thymus_Gland
Contributing_Source
CDISC
GDC
PCDC
UBERON
mCode
xRef
UBERON:0002370
FULL_SYN
thymus gland
thymus organ
Thymus gland structure (body structure)
Thymus Gland
Reticuloendothelial System, Thymus
THYMUS GLAND
THYMUS
Thymus
thymus
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UMLS_CUI
C0040113
Maps_To
THYMUS
Thymus
Preferred_Name
Thymus Gland
type
subClassOf
Display_Name
Thymus Gland
Concept_In_Subset
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C179481
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C66830
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C157711
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C168656
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C77529
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C77526
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C179483
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C61410
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C193234
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C198975
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C168660
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C179482
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C168664
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C168663
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C193006
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C168655
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C74456
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C168659
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C177537
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C179478
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Semantic_Type
Body Part, Organ, or Organ Component
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