pisiform
A laterally positioned sesamoid bone found in close proximity with and occasionally fused to the ulnare. Every claim on this page comes from the Leumas anatomy graph and carries its source.
What the pisiform is
A laterally positioned sesamoid bone found in close proximity with and occasionally fused to the ulnare. The atlas records it as a bone at the organ scale in the human body.
Where the pisiform is
It sits in the upper limb and hand, within the skeletal system. Positioned deliberately as part of this species body plan.
What the pisiform connects to
The atlas records 4 typed relationships for it, across 3 kinds of connection. a kind of proximal carpal bone and sesamoid bone of manus.
Supply and innervation
This dataset asserts no arterial supply, venous drainage or innervation for the pisiform. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.
Also called
Also recorded as pisiform bone, accessory carpal bone and os pisiforme. Searching any of those names reaches this page.
Source
Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001429, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.
- A kind of: proximal carpal bone and sesamoid bone of manus.
- inserts into: flexor carpi ulnaris muscle.
- connects: pisiform joint.
Questions
Where is the pisiform?
It sits in the upper limb and hand, within the skeletal system. Positioned deliberately as part of this species body plan.
What does the pisiform connect to?
A kind of: proximal carpal bone and sesamoid bone of manus.
Is the pisiform the same in other species?
Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.