</> Web Validators

Full Schema Hierarchy

Browse every schema.org type: what it inherits from, what inherits from it, and every property it accepts.

Built from schema.org's own machine-readable release -- 939 types and 1538 properties, version 30.1 -- and served from a committed copy, so it works whether or not schema.org is reachable. Each property is shown with the type it was declared on, which is the part that is hard to see on the official hierarchy page.

Based on: Schema.org · Schema.org — Full Hierarchy

About this validation

Browses the schema.org type hierarchy from a committed copy of schema.org's own machine-readable release: supertypes, subtypes, and the properties a type accepts including everything it inherits.

Rules reviewed:
Nov 15, 2026

SEOTechTests methodology: Serves schema.org's type hierarchy from a copy of its own machine-readable release that is generated by a script in this repository and committed, so the page never depends on schema.org being reachable. Supertypes are flattened breadth-first, and the property list for a type is everything declared on it plus everything inherited.

Standards and vendor-documented behavior can change. This reflects the source as last reviewed above, not a permanent guarantee.

Ligament

A short band of tough, flexible, fibrous connective tissue that functions to connect multiple bones, cartilages, and structurally support joints.

schema.org/Ligament29 properties0 subtypesin the health-lifesci area, not the core vocabulary

Inheritance

Thing→MedicalEntity→AnatomicalStructure→Ligament

Properties declared on Ligament (0)

Ligament declares no properties of its own -- everything it accepts is inherited.

Inherited properties (29)

additionalTypefrom ThingText, URLAn additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax.
alternateNamefrom ThingTextAn alias for the item.
associatedPathophysiologyfrom AnatomicalStructureTextIf applicable, a description of the pathophysiology associated with the anatomical system, including potential abnormal changes in the mechanical, physical, and biochemical func...
bodyLocationfrom AnatomicalStructureTextLocation in the body of the anatomical structure.
codefrom MedicalEntityMedicalCodeA medical code for the entity, taken from a controlled vocabulary or ontology such as ICD-9, DiseasesDB, MeSH, SNOMED-CT, RxNorm, etc.
connectedTofrom AnatomicalStructureAnatomicalStructureOther anatomical structures to which this structure is connected.
descriptionfrom ThingText, TextObjectA description of the item.
diagramfrom AnatomicalStructureImageObjectAn image containing a diagram that illustrates the structure and/or its component substructures and/or connections with other structures.
disambiguatingDescriptionfrom ThingTextA sub property of description.
fundingfrom MedicalEntityGrantA Grant that directly or indirectly provide funding or sponsorship for this item.
guidelinefrom MedicalEntityMedicalGuidelineA medical guideline related to this entity.
identifierfrom ThingPropertyValue, Text, URLThe identifier property represents any kind of identifier for any kind of Thing, such as ISBNs, GTIN codes, UUIDs etc.
imagefrom ThingImageObject, URLAn image of the item.
legalStatusfrom MedicalEntityDrugLegalStatus, MedicalEnumeration, TextThe drug or supplement's legal status, including any controlled substance schedules that apply.
mainEntityOfPagefrom ThingCreativeWork, URLIndicates a page (or other CreativeWork) for which this thing is the main entity being described.
medicineSystemfrom MedicalEntityMedicineSystemThe system of medicine that includes this MedicalEntity, for example 'evidence-based', 'homeopathic', 'chiropractic', etc.
namefrom ThingTextThe name of the item.
ownerfrom ThingOrganization, PersonA person or organization who owns this Thing.
partOfSystemfrom AnatomicalStructureAnatomicalSystemThe anatomical or organ system that this structure is part of.
potentialActionfrom ThingActionIndicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.
recognizingAuthorityfrom MedicalEntityOrganizationIf applicable, the organization that officially recognizes this entity as part of its endorsed system of medicine.
relatedConditionfrom AnatomicalStructureMedicalConditionA medical condition associated with this anatomy.
relatedTherapyfrom AnatomicalStructureMedicalTherapyA medical therapy related to this anatomy.
relevantSpecialtyfrom MedicalEntityMedicalSpecialtyIf applicable, a medical specialty in which this entity is relevant.
sameAsfrom ThingURLURL of a reference Web page that unambiguously indicates the item's identity.
studyfrom MedicalEntityMedicalStudyA medical study or trial related to this entity.
subStructurefrom AnatomicalStructureAnatomicalStructureComponent (sub-)structure(s) that comprise this anatomical structure.
subjectOffrom ThingCreativeWork, EventA CreativeWork or Event about this Thing.
urlfrom ThingURLURL of the item.

FAQ

Where does this hierarchy come from?

From schema.org's published machine-readable vocabulary, condensed to the type and property relations and committed to this site. The release version it was built from is shown with the results.[1, 2]

Why does a type list properties it does not declare?

Because it inherits them. Every type ultimately descends from Thing, so name, url, description and image are available everywhere without being declared on each type.[1]

What do pending and attic mean next to a type?

schema.org keeps proposed terms in a pending area before they join the core vocabulary, and moves retired ones to an attic so old markup still resolves. A term in either is real, but not part of the core vocabulary.[1]