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has constitutional part
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has member
has superclass (is a)
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Upper classes

Anatomical entity

Physical anatomical entity

Non-physical anatomical entity

Material anatomical entity

Immaterial anatomical entity

Anatomical set

Anatomical structure

Portion of body substance

Anatomical space

Anatomical boundary entity

Set of immaterial anatomical entities

Body

Cardinal body part

Organ system

Organ

Portion of tissue

Cell

Subdivision of cardinal body part

Organ system subdivision

Cardinal organ part

Cardinal tissue part

Cardinal cell part

Biological macro­molecule

Acellular anatomical structure

Anatomical cluster

Details of current class
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non-English equivalent
definition
has dimension
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has mass
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