Published

large intestine

vr.tr.large-intestine · thing-q11083

Enable an AI agent to recognise a large intestine, record its segment-specific condition and function, and assess which observations or interventions require further evidence or authorization.

Thing Registry Physical world and living systems PHY.OBJ

Bundle → Layer → Finding → Questions Classifiers What it is Why it exists Distinguishing features What robots and AI may and may not do Moral aspects Owners Links to other meta-models Identity and identifiers Direct properties Recognition Capabilities and actions Hazards and failure modes Standards and interfaces Context of use Sources

Bundle → Layer → Finding → Questions Filled

5 bundles · 10 layers · 10 findings · 20 questions

Anatomical identity and continuity Establish which large intestine is represented and how its regions connect.

Regional boundaries

Declare the anatomical convention and locate the organ's constituent regions.

Large-intestine extent

Record the included regions and observed proximal and distal boundaries.

For this species and terminology, which regions belong to the large intestine, including the status of the appendix and anal canal where applicable? boundary
Which observed landmarks distinguish this structure from small intestine and distinguish the whole organ from its colon component? definition

Altered bowel topology

Represent native connections and changes caused by development or procedures.

Retained segments and routes

Record retained, absent, bypassed and substituted regions together with their connections.

Which segments remain connected to the incoming bowel and to a natural or surgically created outlet? boundary
Which operative records, imaging or direct observations establish each resection, anastomosis, diversion or tissue substitution? provenance

Wall condition and perfusion Describe the intestinal wall as a barrier, structural tube and living tissue.

Mucosal and deeper-wall state

Localise tissue changes by segment and depth.

Wall abnormality extent

Record observed lesions, inflammation and wall changes without converting appearance into an unsupported diagnosis.

Which segment and wall layers show abnormalities, and what are their measured extent and appearance? measurement
Was the finding established by endoscopy, imaging, histology or another method, and which tissue depths could that method assess? provenance

Viability and containment

Track evidence about blood supply and separation of the lumen from surrounding spaces.

Perfusion and wall-breach evidence

Distinguish demonstrated impairment or leakage from suspicion and unassessed status.

What location-specific evidence supports adequate or impaired perfusion, and when was it obtained? provenance
Is there evidence of a wall breach, leak or abnormal connection, and which compartments or structures are involved? boundary

Luminal passage and evacuation Represent contents, available passage and movement through the large intestine.

Lumen and contents

Describe regional calibre and the distribution of material within the bowel.

Passage geometry

Record narrowing, dilation and retained contents with measurement context.

Where are narrowing, dilation or retained contents observed, and what dimensions or extent were measured? measurement
How did bowel preparation, insufflation, filling or decompression affect the observed lumen? provenance

Transit and outlet interface

Separate movement through the organ from passage through its outlet.

Regional movement and emptying

Record transit and emptying evidence without using stool frequency as a complete functional assessment.

What regional or whole-large-intestine transit was measured, using which protocol and observation period? measurement
Which findings localise impaired passage within the large intestine, and which instead concern the pelvic floor or outlet apparatus? boundary

Fluid handling and luminal ecology Capture evidence about fluid exchange and microbial processes within the large-intestinal lumen.

Water and electrolyte exchange

Represent measured or inferred contributions to fluid and electrolyte handling.

Exchange evidence and attribution

Record what can be attributed to the large intestine and what remains a whole-organism observation.

Which measurements support an estimate of large-intestinal water or electrolyte exchange, and in what units? measurement
How are incoming small-intestinal contents, transit, resection and diversion accounted for when attributing the observation to this organ? boundary

Microbial activity and sampling

Connect local microbial observations to their sampling and analytical limitations.

Luminal ecology evidence

Record microbial and metabolite evidence without assuming that a stool sample describes every region.

Was the sample collected from stool, luminal contents or mucosa, and which large-intestinal region can it represent? provenance
Which microbial activities or metabolites were measured, and which functional interpretations remain unverified? measurement

Examination and intervention constraints Connect the organ's current anatomy and condition to proposed examinations and interventions.

Examination coverage

Record which regions and tissue aspects an examination actually evaluated.

Reach, visibility and sample location

Preserve coverage gaps that could otherwise be mistaken for normal findings.

Which segments were reached or visualised, and where did preparation, narrowing, altered anatomy or technical limits reduce coverage? boundary
How is each biopsy or other sample linked to its collection site and examination record? provenance

Action eligibility and follow-up

Record the evidence, authority and expected anatomical consequences of a proposed action.

Large-intestinal action constraints

Make procedure-specific constraints and reassessment requirements explicit without supplying a treatment protocol.

For the proposed preparation, instrumentation, sampling or surgery, what documented anatomy and tissue findings require qualified assessment before proceeding? action
Who authorized the action, and which changes to continuity, wall integrity, passage or fluid handling must be recorded afterward? action

Classifiers Filled

Family: Thing Registry
Category: Physical world and living systems
Entry kind: thing
Plane: PHY
Domain: PHY.OBJ
Other names and narrower kinds: human large intestine, calf hindgut, deer hindgut, cattle hindgut, pork large intestine

What it is Filled

This model owns the identity, anatomical extent, tissue condition, luminal state, physiological performance and intervention constraints of the large intestine registered as vr.tr.large-intestine in PHY / PHY.LIV, with species and anatomical convention explicitly recorded.

In scope

Species-specific anatomical boundaries, constituent segments and continuity with neighbouring bowel
Native, variant, resected, reconstructed and diverted large-intestinal anatomy
Segment-specific wall integrity, perfusion, inflammation and structural abnormalities
Luminal contents, passage, storage and evacuation contribution
Water and electrolyte handling and local microbial activity
Evidence and anatomical constraints relevant to examination, sampling and intervention

Out of scope

Small-intestinal anatomy and digestion except at the junction with the large intestine
Whole-organism nutrition, hydration and systemic disease management
Microbial taxa and communities as independently modelled biological entities
Pelvic floor and anal sphincter apparatus beyond their functional interfaces
Disease classification, cancer staging and treatment protocols as independent models
Endoscopes, surgical instruments, medications and ostomy appliances as products

Why it exists Filled

Enable an AI agent to recognise a large intestine, record its segment-specific condition and function, and assess which observations or interventions require further evidence or authorization.

Distinguishing features Filled

Confirm identity through species-appropriate position and continuity within the distal intestinal tract; diameter alone is insufficient.
Distinguish the whole large intestine from the colon: document which additional regions the adopted anatomical convention includes.
For human anatomy, use caecal, colonic and rectal landmarks to distinguish regions; do not require every segment to exhibit the same external features.
When histology is available, assess whether the regional mucosal pattern supports large-intestinal rather than small-intestinal identity, allowing for disease and altered anatomy.
Distinguish retained native large intestine from an ileal pouch or other surgically substituted conduit using operative history and tissue origin.

What robots and AI may and may not do Filled

Must not

Give a diagnosis or treatment plan for bowel symptoms in place of a clinician.
Dismiss warning signs such as bleeding or persistent change in bowel habit as unimportant.
Disclose a person's bowel health, tests or stoma status without consent.
Recommend unproven colon cleansing or remedies as safe treatment.

Only with a human decision

Any intervention on the large intestine, including procedures and preparation for them.
Decisions about screening or surgery for a specific person.

May

Explain the large intestine's parts and functions in general health information.
Pass on clinical findings about a person's large intestine only to that person and their care team.

Moral aspects Filled

Bowel conditions carry stigma; dignity and privacy matter in care and in data.
Delayed attention to bowel symptoms can cost lives through late cancer diagnosis.

Who is affected

Patients
People with stomas or chronic bowel disease
Carers

Owners Filled

Steward

The person whose body it is; clinicians answer for care and health records.

Master systems

Health records held by care providers
Cancer registries

Links to other meta-models Filled

parent

Q112826975 - registry parent class
Q66545296 - registry parent class

What else AI and robots need to interact with it Filled

Sources Filled

Wikidata item Q11083: large intestine - identity and sense of the item
Wikipedia: Large intestine - general description of the item

Open questions

Does this registry entry intend human anatomy only or a cross-species concept, and which anatomical terminology should govern its boundaries?
Should the appendix and anal canal be constituent regions or linked neighbouring models under the registry's chosen convention?
Which species-, age-, segment- and method-specific reference evidence can support interpretation of calibre, wall thickness and transit?
Which measurements can reliably attribute fluid exchange or microbial function to a particular large-intestinal region rather than infer it from stool or systemic observations?
Does an existing Vercy world model already own this concept, and which reviewed sources and clinical governance rules should support any eventual action constraints?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q11083/spec.json