Mitral valve
E432888
The mitral valve is a dual-flap heart valve between the left atrium and left ventricle that ensures one-way blood flow from the atrium to the ventricle.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mitral valve canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4332159 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Mitral valve Context triple: [Heart, hasPart, Mitral valve]
-
A.
Tricuspid valve
The tricuspid valve is one of the heart’s four valves that regulates blood flow between the right atrium and right ventricle, preventing backflow during ventricular contraction.
-
B.
Atrial septum
The atrial septum is the wall of tissue that separates the heart’s left and right atria, helping maintain proper direction and separation of blood flow between them.
-
C.
Right ventricle
The right ventricle is one of the heart’s four chambers that pumps deoxygenated blood to the lungs via the pulmonary artery.
-
D.
Sinoatrial node
The sinoatrial node is the heart’s natural pacemaker, a specialized cluster of cells that initiates and regulates the heartbeat by generating electrical impulses.
-
E.
Pulmonary veins
The pulmonary veins are blood vessels that carry oxygen-rich blood from the lungs to the left atrium of the heart.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Mitral valve Target entity description: The mitral valve is a dual-flap heart valve between the left atrium and left ventricle that ensures one-way blood flow from the atrium to the ventricle.
-
A.
Tricuspid valve
The tricuspid valve is one of the heart’s four valves that regulates blood flow between the right atrium and right ventricle, preventing backflow during ventricular contraction.
-
B.
Atrial septum
The atrial septum is the wall of tissue that separates the heart’s left and right atria, helping maintain proper direction and separation of blood flow between them.
-
C.
Right ventricle
The right ventricle is one of the heart’s four chambers that pumps deoxygenated blood to the lungs via the pulmonary artery.
-
D.
Sinoatrial node
The sinoatrial node is the heart’s natural pacemaker, a specialized cluster of cells that initiates and regulates the heartbeat by generating electrical impulses.
-
E.
Pulmonary veins
The pulmonary veins are blood vessels that carry oxygen-rich blood from the lungs to the left atrium of the heart.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
atrioventricular valve
ⓘ
cardiac structure ⓘ heart valve ⓘ |
| associatedWithHeartSound | first heart sound S1 ⓘ |
| attachedTo | fibrous mitral annulus ⓘ |
| belongsTo | left heart ⓘ |
| bestHeardAt | cardiac apex ⓘ |
| canBeReplacedBy |
bioprosthetic mitral valve
ⓘ
mechanical mitral valve prosthesis ⓘ |
| clinicalSignificance |
can be affected by infective endocarditis
ⓘ
can be affected by rheumatic heart disease ⓘ site of mitral regurgitation ⓘ site of mitral stenosis ⓘ site of mitral valve prolapse ⓘ |
| closesDuring | left ventricular systole ⓘ |
| closureContributesTo | first heart sound S1 ⓘ |
| connectedTo |
chordae tendineae
ⓘ
papillary muscles ⓘ |
| developsFrom | endocardial cushions ⓘ |
| ensures | one-way blood flow from left atrium to left ventricle ⓘ |
| function |
permits blood flow from left atrium to left ventricle
ⓘ
prevents backflow of blood into left atrium during ventricular systole ⓘ |
| hasAlternativeName |
bicuspid valve
ⓘ
left atrioventricular valve ⓘ |
| hasClinicalAssessment | auscultation at cardiac apex ⓘ |
| hasImagingModality |
cardiac CT
ⓘ
cardiac MRI ⓘ echocardiography ⓘ |
| hasNumberOfLeaflets | 2 ⓘ |
| hasPart |
anterior leaflet
ⓘ
posterior leaflet ⓘ |
| hasShape | resembling a bishop’s miter ⓘ |
| hasSurgicalProcedure |
mitral valve repair
ⓘ
mitral valve replacement ⓘ |
| hasTissueType | endocardium-lined fibrous tissue ⓘ |
| innervatedBy | autonomic nervous system ⓘ |
| isAffectedBy |
congenital malformations
ⓘ
degenerative valve disease ⓘ ischemic heart disease ⓘ |
| isComponentOf | cardiac cycle mechanics ⓘ |
| locatedBetween |
left atrium
ⓘ
left ventricle ⓘ |
| locatedIn | heart ⓘ |
| opensDuring | left ventricular diastole ⓘ |
| regulates |
left ventricular filling
ⓘ
stroke volume ⓘ |
| suppliedBy | coronary arteries ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Mitral valve Description of subject: The mitral valve is a dual-flap heart valve between the left atrium and left ventricle that ensures one-way blood flow from the atrium to the ventricle.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.