urinary bladder
Enable an AI agent to recognise a urinary bladder, record its storage and emptying state, and identify which assessments or interventions require further evidence or clinical authority.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 18 findings · 30 questions
Bladder identity and boundaries Establishes which organ is being modelled and where its urinary and tissue boundaries lie.
Organ identification
Identifies the bladder within its host and anatomical context.
Identified urinary reservoir
Records evidence that the structure is a urinary bladder rather than another fluid-filled structure.
- Which host, species and developmental stage does this bladder belong to? definition
- What anatomical, imaging or operative evidence establishes this structure as the bladder? provenance
Native and altered boundaries
Locates the bladder's connections and accounts for surgical changes.
Urinary and tissue interfaces
Records ureteral entries, the outlet and any reconstructed tissue or drainage connection.
- Where do the ureters and outlet meet the bladder, and which observed abnormalities cross those boundaries? boundary
- What native tissue remains, and what reconstruction or augmentation is documented? provenance
Bladder wall and lumen Describes the bladder's tissue envelope and findings within its cavity.
Wall and lining
Records local tissue observations with their assessment conditions.
Wall integrity and local lesions
Separates observed wall or lining changes from their suspected causes.
- What wall or lining changes are observed, at which bladder location and by which method? measurement
- What filling state and prior procedures affect interpretation of these observations? provenance
- Is a finding confined to the bladder or documented to extend into neighbouring tissue? boundary
Luminal contents
Distinguishes urine from other material or devices occupying the lumen.
Non-urine luminal findings
Records stones, clots, debris, foreign material or device components as separately evidenced findings.
- What material or device is observed within the bladder, and how was its identity established? provenance
- What size, mobility, attachment or relationship to the outlet is documented? measurement
Urine storage Represents filling volume, storage mechanics and sensation.
Filling and capacity
Distinguishes a momentary volume from an assessed storage endpoint.
Volume and capacity context
Records volume measurements and the conditions defining any capacity estimate.
- What volume was measured, when and by which method? measurement
- If capacity is reported, what endpoint and natural or artificial filling conditions define it? definition
Storage mechanics and sensation
Relates pressure and detrusor behaviour to the filling experience.
Filling pressure response
Records storage pressure, compliance and associated sensations without assuming they agree.
- What pressure-volume response and detrusor activity were recorded during filling, and how were they measured? measurement
- What sensation, urgency or pain was reported at the corresponding filling stages, or was reporting not possible? measurement
Bladder emptying Records how urine leaves the bladder and how completely it empties.
Voiding coordination
Connects bladder activity with flow and the outlet interface.
Contraction and outflow
Records the observed relationship between contraction and urine outflow without inferring a cause from flow alone.
- What detrusor pressure, urine flow and assistance were documented during the same emptying episode? measurement
- What evidence distinguishes impaired bladder contraction from resistance or coordination problems at the outlet? boundary
Emptying outcome
Records residual urine and the mode by which emptying occurred.
Residual and drainage mode
Keeps spontaneous voiding outcomes distinct from device-assisted drainage outcomes.
- How much urine remained after voiding, measured by which method and after what interval? measurement
- Was emptying spontaneous, assisted or catheter-mediated, and what limitations does that place on judging native function? boundary
Bladder assessment and action Connects bladder-specific evidence, uncertainty and proposed interventions.
Symptom and diagnosis attribution
Separates local observations, reported symptoms and confirmed diagnoses.
Evidence for bladder origin
Records why a concern is attributed to the bladder and what competing explanations remain.
- What evidence supports a bladder origin for pain, bleeding, urgency, leakage or suspected infection? provenance
- Which possible sources in the kidneys, ureters, urethra or neighbouring organs remain unresolved? boundary
Intervention and reassessment
Tracks the basis, authority and observed outcome of bladder-directed action.
Justified bladder-directed action
Records proposed or completed assessment, drainage or treatment and the evidence needed to evaluate its result.
- What bladder-specific concern motivates the proposed action, and what prerequisites and clinical authority are documented? action
- Which bladder volume, pressure, residual, tissue finding or symptom will be reassessed to determine the outcome? action
- What device placement, sampling route or procedure details must accompany the resulting observations? provenance
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Kinds and varieties
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these kinds and varieties hold for the sense of urinary bladder this model covers, and on what evidence? provenance
Identifiers and schemes
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these identifiers and schemes hold for the sense of urinary bladder this model covers, and on what evidence? provenance
Standards and regulation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these standards and regulation hold for the sense of urinary bladder this model covers, and on what evidence? provenance
Real-world use
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these real-world use hold for the sense of urinary bladder this model covers, and on what evidence? provenance
Typical measurements
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these typical measurements hold for the sense of urinary bladder this model covers, and on what evidence? provenance
Failure modes and hazards
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these failure modes and hazards hold for the sense of urinary bladder this model covers, and on what evidence? provenance
Regional variation
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these regional variation hold for the sense of urinary bladder this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Reported by the breadth pass; each item needs checking against its source before it becomes normative.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of urinary bladder this model covers, and on what evidence? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.OBJ
- Other names and narrower kinds
- whipping bladder, northern pike bladder, pig bladder, Pig bladder
What it is Filled
The urinary bladder is a distensible hollow organ that stores urine before its release in vertebrates that possess one, with location, wall structure, urinary connections and control varying by species and developmental stage; in humans it is largely extraperitoneal and located in the true pelvis, with a urothelial lining and detrusor muscle, receiving urine from the paired ureters and emptying through the urethra under coordinated autonomic and somatic control.
In scope
- Organ identity, anatomical boundaries and native or surgically altered configuration
- Bladder wall, lining, lumen and local structural abnormalities
- Filling, storage pressure, capacity and wall compliance
- Detrusor activity, bladder sensation and emptying performance
- Bladder-specific observations, devices, interventions and unresolved concerns
Out of scope
- Renal filtration and urine production, owned by kidney models
- Ureteral anatomy and transport beyond the bladder junctions
- Urethral, sphincter, prostate and pelvic-floor structures beyond their bladder interfaces
- Whole-person fluid balance, neurological disease and systemic infection
- Urine composition as a specimen, except where it supplies evidence about bladder state
- Intestinal urinary reservoirs and external collection bags as substitutes with their own identities
Why it exists Filled
Enable an AI agent to recognise a urinary bladder, record its storage and emptying state, and identify which assessments or interventions require further evidence or clinical authority.
Distinguishing features Filled
- Identify a biological urinary reservoir connected to the urinary drainage pathway; a gallbladder belongs to the biliary pathway.
- Distinguish a storage lumen with an organ wall from the conducting lumen of a ureter or urethra using anatomical continuity and observed configuration.
- Distinguish the bladder from a cyst or other fluid-filled structure by demonstrating its urinary connections or documented organ identity.
- Distinguish native bladder tissue, augmented bladder and a replacement reservoir from operative history and tissue origin.
- Distinguish the organ from its urine contents and any inserted catheter; either can change without changing organ identity.
What robots and AI may and may not do Filled
Must not
- Diagnose bladder cancer, infection or retention in a specific person without a clinician.
- Advise a person to ignore blood in the urine or inability to pass urine.
- Share a person's continence, catheter or urology records beyond their care team.
- Mock or stigmatise people living with incontinence.
Only with a human decision
- Any decision on catheterisation, surgery or treatment for a patient.
- Interpreting a scan or test result for a patient.
May
- Explain the bladder's anatomy and role in storing and voiding urine from medical sources.
- Label the bladder on anatomical diagrams and teaching images.
Moral aspects Filled
- Bladder problems touch on intimate care and dignity and are often hidden out of shame.
- Delayed care for retention or blood in the urine can cause lasting harm.
Who is affected
- Patients
- People living with incontinence
- Carers
Owners Filled
Steward
The patient with their treating clinicians; nobody owns the organ.
Links to other meta-models Filled
parent
- Q112826975 - registry parent class
- Q66545296 - registry parent class
- Q956898 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.urinary-bladder
- Wikidata: Q9382 (https://www.wikidata.org/wiki/Q9382)
Direct properties required Filled
- Biological context: Host organism, species, developmental stage and relevant anatomical context
- Anatomical configuration: Native, surgically repaired, augmented, partially resected, other documented configuration, unknown
- Urinary pathway connections: Identified ureteral entries, bladder outlet and any surgically created drainage connection
- Observed intravesical volume: mL, with time, method and filling or voiding phase
- Assessed storage capacity: mL, with functional or test-defined endpoint and assessment conditions
- Storage pressure and compliance: Pressure in cmH2O; compliance in mL/cmH2O; identify pressure type, calculation and filling interval
- Post-void residual: mL, with elapsed time after voiding and measurement method
- Detrusor activity: Observed contraction pattern during filling and voiding, assessment method, interpretation or unknown
- Bladder sensation: Reported filling sensation, urgency, pain, absent report, not assessable or unknown
- Wall and lumen findings: Located observations of wall continuity, lining, thickness, lesions, stones, debris or other abnormalities, with method and filling state
- Drainage device relationship: Device identity, route, position, purpose and observed drainage status, or no device documented
Recognition required Filled
- In humans, the urinary bladder is a hollow muscular sac located behind the pubic bone when relatively empty, with position and extent changing as it fills.
- On ultrasound, it generally appears as a dark fluid-filled shape whose size changes with filling.
- Its location and urinary connections must be interpreted according to species and developmental stage.
Capabilities and actions required Filled
- Identify and localise the bladder and its urinary connections from documented anatomy or examination evidence.
- Record and compare filling volume, storage pressure and emptying results under stated conditions.
- Associate symptoms and local findings with the bladder while preserving alternative sources and diagnostic uncertainty.
- Track bladder-directed drainage, sampling, imaging, endoscopic assessment or surgery as proposed or performed actions with their prerequisites.
- Flag observations for qualified review using applicable clinical criteria and track the resulting decision.
Hazards and failure modes required Filled
- Urinary retention can damage the kidneys if not relieved.
- Infections can spread to the kidneys and blood.
- Injury in pelvic trauma can leak urine into the abdomen.
Standards and interfaces required Filled
- The International Classification of Diseases, Tenth Revision, issued by the World Health Organization, classifies human bladder disorders within its disease categories.
Context of use required Filled
- The urinary bladder stores urine between episodes of urination in humans and many other vertebrates.
- It is examined in anatomy, diagnostic imaging and clinical assessment of urinary storage and emptying.
Sources Filled
- Gray's Anatomy: The Anatomical Basis of Clinical Practice - Gross anatomy, relations, trigone, detrusor, innervation, and developmental origin from the urogenital sinus.
- Terminologia Anatomica, 2nd edition - Official Latin and English anatomical name (vesica urinaria / urinary bladder) and partonomy used in teaching and coding.
- Urinary bladder - Consensus overview of structure, function, innervation, capacity, and major diseases; used only as a secondary map onto primary anatomical and urological sources.
- urinary bladder (Q9382) - Stable public identifier and crosswalks to FMA, UBERON, MeSH, and SNOMED.
- Urinary Bladder (MeSH D001743) - NLM controlled heading for the organ and the bibliographic cluster of bladder research.
- EAU Guidelines (Non-muscle-invasive Bladder Cancer; Muscle-invasive and Metastatic Bladder Cancer; Neuro-Urology; Non-neurogenic Female LUTS) - How the living organ is investigated and treated in contemporary urology: cystoscopy, BCG, cystectomy, urodynamics, and neurogenic-bladder pressure limits.
- Clinically Oriented Anatomy - Sex-specific relations, catheterization landmarks, rupture patterns (intra- versus extraperitoneal), and distinction from adjacent pelvic viscera.
- Wikipedia: Bladder - general description of the item
Open questions
- Should the initial model cover human urinary bladders only, or which species-specific anatomical variants must it support?
- Which reference standards and assessment protocols should govern interpretation of capacity, compliance, storage pressure and residual volume for each population?
- At what degree of augmentation or reconstruction should a urinary reservoir receive a separate linked model rather than remain a configuration of this entry?
- Which minimum evidence is required to attribute urinary symptoms, infection or bleeding to the bladder rather than another part of the urinary tract?
- Which bladder findings require escalation under the intended deployment's clinical protocols, and which actions may the agent initiate versus only record or recommend for review?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q9382/spec.json