MeSH Browser

MeSH Heading: Circle of Willis
Tree Number(s): A07.015.114.228.351
Unique ID: D002941
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D002941
Scope Note: A polygonal anastomosis at the base of the brain formed by the internal carotid (CAROTID ARTERY, INTERNAL), proximal parts of the anterior, middle, and posterior cerebral arteries (ANTERIOR CEREBRAL ARTERY; MIDDLE CEREBRAL ARTERY; POSTERIOR CEREBRAL ARTERY), the anterior communicating artery and the posterior communicating arteries.
Entry Term(s): Cerebral Arterial Circle; Willis' Circle
Public MeSH Note: 65
History Note: 65
Date Established: 1965/01/01
Date of Entry: 1999/01/01
Revision Date: 2018/06/30

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)

Circle of Willis MeSH Descriptor Data 2023