MeSH Browser

MeSH Heading: Sinoatrial Node
Tree Number(s): A07.541.409.819
Unique ID: D012849
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D012849
Scope Note: The small mass of modified cardiac muscle fibers located at the junction of the superior vena cava (VENA CAVA, SUPERIOR) and right atrium. Contraction impulses probably start in this node, spread over the atrium (HEART ATRIUM) and are then transmitted by the atrioventricular bundle (BUNDLE OF HIS) to the ventricle (HEART VENTRICLE).
Entry Term(s): Sino-Atrial Node; Sinu-Atrial Node; Sinuatrial Node; Sinus Node
Public MeSH Note: 78; was SINO-ATRIAL NODE 1970-77
Online Note: use SINOATRIAL NODE to search SINO-ATRIAL NODE 1966-77 (as Prov 1966-69)
History Note: 78; was SINO-ATRIAL NODE 1964-77 (Prov 1964-69)
Date Established: 1970/01/01
Date of Entry: 1999/01/01
Revision Date: 2005/06/30

Allowable Qualifiers: abnormalities (AB)

anatomy & histology (AH)

chemistry (CH)

cytology (CY)

diagnostic imaging (DG)

drug effects (DE)

embryology (EM)

enzymology (EN)

growth & development (GD)

immunology (IM)

injuries (IN)

innervation (IR)

metabolism (ME)

microbiology (MI)

parasitology (PS)

pathology (PA)

physiology (PH)

physiopathology (PP)

radiation effects (RE)

surgery (SU)

transplantation (TR)

ultrastructure (UL)

virology (VI)

Concept UI: M0019898
Scope Note: The small mass of modified cardiac muscle fibers located at the junction of the superior vena cava (VENA CAVA, SUPERIOR) and right atrium. Contraction impulses probably start in this node, spread over the atrium (HEART ATRIUM) and are then transmitted by the atrioventricular bundle (BUNDLE OF HIS) to the ventricle (HEART VENTRICLE).
Terms: Sinoatrial Node Preferred Term
Term UI T037890
Date01/01/1999
LexicalTag NON
ThesaurusID NLM (1964); Sinu-Atrial Node
Term UI T458485
Date08/22/2001
LexicalTag NON
ThesaurusID NLM (2003); Sinus Node
Term UI T627639
Date01/12/2005
LexicalTag NON
ThesaurusID NLM (2006); Sino-Atrial Node
Term UI T037891
Date02/08/1977
LexicalTag NON
ThesaurusID UNK (19XX); Sinuatrial Node
Term UI T458483
Date08/22/2001
LexicalTag NON
ThesaurusID NLM (2003)

Sinoatrial Node MeSH Descriptor Data 2023