nail

A horn-like keratin structure covering the dorsal aspect of the terminal phalanges of fingers and toes[WP]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the nail is

A horn-like keratin structure covering the dorsal aspect of the terminal phalanges of fingers and toes[WP]. The atlas records it as a organ at the organ scale in the human body.

Where the nail is

It sits within the integumentary system. Positioned deliberately as part of this species body plan.

What the nail connects to

The atlas records 15 typed relationships for it, across 5 kinds of connection. part of digit, integumental system and limb segment, and 1 more.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the nail. 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 nail/claw, claw and talon. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001705, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: digit, integumental system, limb segment and skin epidermis.
• A kind of: anatomical projection and organ part.
• contains: lunule of nail, nail bed of finger, nail bed of toe, nail matrix, nail plate and root of nail.
• subtype: nail of manual digit and nail of pedal digit.
• surrounded by: eponychium.

Questions

Where is the nail?

It sits within the integumentary system. Positioned deliberately as part of this species body plan.

What does the nail connect to?

Part of: digit, integumental system, limb segment and skin epidermis.

Is the nail 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.