The skeleton of a structure may be a true skeleton (for example, the bony skeleton of a hand) or any kind of support framework (the hydrostatic skeleton of a sea star, the exoskeleton of an insect, the cytoskeleton of a cell).

RO:0002551

A relation between a subdivision of an organism and the single subdivision of skeleton that provides structural support for that subdivision.,A relation between a segment or subdivision of an organism and the maximal subdivision of material entities that provides structural support for that segment or subdivision.

Forelimb SubClassOf has_skeleton some 'Forelimb skeleton'

uberon

has sekeletal support,has supporting framework

has_skeleton

http://purl.obolibrary.org/obo/cl.owl

has_skeleton

Chris Mungall