urinary system
Enable an agent to recognise a urinary system, represent its urine-producing and urine-conveying organisation, assess documented functional state, and identify what further observation or authorised action is needed.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to recognise a urinary system, represent its urine-producing and urine-conveying organisation, assess documented functional state, and identify what further observation or authorised action is needed.
The urinary system is the organ system that produces and eliminates urine, comprising in humans the kidneys, ureters, urinary bladder and urethra, and contributing to waste excretion and regulation of body fluid composition.
It can be Map documented urinary components and trace urine routes through native or altered anatomy.; Associate observations with urine formation, transport, storage, or elimination.; Compare time-stamped functional observations while preserving units, methods, and collection conditions.; Identify missing evidence that prevents distinguishing reduced production from impaired drainage or incomplete collection.; Represent how an intervention changes urinary pathways or supports particular functions.; Identify observations requiring review under an applicable clinical or veterinary protocol..
Distinguishing features
Represents an integrated urine-forming and urine-eliminating subsystem, rather than an arbitrary collection of organs.
Extends beyond the kidneys to the organism's downstream urinary pathways; a kidney alone is a component.
Distinguishes urine formation from its conveyance and discharge, so observed urine output does not automatically establish renal function.
Separates urinary roles from reproductive roles where structures are shared.
Uses urine handling to distinguish this subsystem from other routes of waste elimination, including digestive and respiratory processes.
Scope
+ System membership, anatomical boundaries, and species-specific organisation
+ Renal urine formation and contributions to fluid, electrolyte, and acid-base regulation
+ Urine transport, storage where present, and elimination
+ Coordination of urinary flow, continence, and voiding
+ Documented functional state, structural alterations, and effects of urinary interventions
- The general concept of a system and its domain-independent properties
- Complete organism anatomy and physiology
- Standalone detailed models of kidneys, nephrons, ureters, bladder, or urethra
- Reproductive functions of anatomically shared structures
- Disease classifications, diagnostic criteria, and treatment protocols
- Design and operation of catheters, dialysis equipment, or other medical devices
Characteristics
- Host organism and anatomical convention
- Organism reference, taxon, life stage, and applicable anatomical terminology Determines which structures and functional expectations apply.
- Urinary component configuration
- Documented components, counts, laterality, and native, absent, transplanted, or reconstructed status Prevents an assumed standard anatomy from replacing the observed configuration.
- Urinary pathway connectivity
- Directed connections from urine-forming structures to exit routes, including diversions Allows an agent to locate interruptions and understand the route of collected urine.
- Glomerular filtration assessment
- Reported value and method; commonly mL/min or mL/min/1.73 m² in human records, with indexing preserved Records filtration evidence without conflating measured and estimated values or indexed and absolute quantities.
- Urine output
- mL over a stated interval or mL/kg/h, with collection route and completeness Supports interpretation of output while exposing collection and drainage limitations.
- Urine composition
- Named analyte, value, unit, specimen type, collection time, and method; pH is dimensionless Makes composition observations interpretable in relation to formation, concentration, and specimen conditions.
- Post-void residual volume
- mL, with measurement method and elapsed time after voiding; not applicable where no bladder is present Provides evidence about emptying separately from urine production.
- Storage and elimination state
- Documented continence, leakage, voiding ability, retention, drainage assistance, or unknown, with time and evidence Captures practical function and dependence on interventions.
- Urinary intervention interfaces
- Links to catheters, stents, diversions, transplants, or renal replacement support and their affected functions Separates native system function from assisted or replaced function.
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 16 findings · 26 questions.
Urinary identity and anatomy Defines which organism-specific structures constitute the urinary system and how they connect.
Urinary anatomy varies, and system identity must survive congenital variation, organ loss, transplantation, or reconstruction.
Organism and system boundary
Places the urinary subsystem within its host and separates urinary roles from neighbouring functions.
Host-specific urinary membership
Record membership by anatomical structure and urinary role, with the host's taxon and life stage explicit.
- Which organism, taxon, and life stage does this system instance belong to? definition
- Which structures perform urinary roles, and which shared structures also belong to reproductive or other systems? boundary
Component topology
Represents component counts, laterality, connections, and anatomical alterations.
Documented urine route
Trace each documented route from urine formation to exit, including reconstructed and externally drained routes.
- What connected route carries urine from each urine-forming component to its exit? definition
- What imaging, operative record, or anatomical observation establishes this configuration? provenance
Renal formation and regulation Organises evidence about urine formation and renal contributions to internal regulation.
Urinary function includes selective processing and regulatory contributions that cannot be inferred from drainage alone.
Filtration and tubular processing
Distinguishes filtration assessment from tubular handling and final urine composition.
Formation process evidence
Keep filtration estimates, tubular function observations, and urine composition as distinct evidence about urine formation.
- Which measurements address filtration, and were they directly measured or estimated using a stated method? measurement
- What evidence addresses tubular reabsorption, secretion, or concentrating function separately from filtration? measurement
Internal regulatory contributions
Links renal observations to fluid, electrolyte, acid-base, and endocrine contexts without owning whole-body regulation.
Renal and whole-organism context
Represent renal contributions alongside relevant organism-level observations while keeping causal attribution explicit.
- Which paired blood, urine, intake, and output observations are available to assess renal regulatory contributions? measurement
- Which regulatory observations belong here, and which should link to cardiovascular, endocrine, or whole-organism models? boundary
Urine transport and storage Represents passage through urinary pathways and reservoir behaviour where a reservoir exists.
Transport and storage problems can alter observed output independently of urine formation.
Drainage and patency
Locates evidence of passage, obstruction, reflux, leakage, or uncertain drainage.
Segment-specific flow state
Attach drainage observations to a named pathway segment and direction rather than assigning one undifferentiated state to the system.
- Which urinary segment has evidence of unobstructed passage, obstruction, reflux, or leakage? measurement
- What examination, imaging, or device observation supports that state, and when was it obtained? provenance
Urinary reservoir behaviour
Captures storage volume and pressure evidence for a bladder or reconstructed reservoir when present.
Storage capacity and pressure
Distinguish observed reservoir volume, assessed capacity, and pressure behaviour, retaining measurement conditions.
- Is a urinary reservoir present, and is it native, reconstructed, or bypassed? definition
- What volume and pressure measurements describe storage, using which units and filling conditions? measurement
Continence and elimination Describes coordinated storage and release, actual emptying, and dependence on assistance.
Continence and effective emptying are separate functional dimensions requiring coordination across urinary and nervous structures.
Storage-release coordination
Connects reservoir, outlet, and neural-control observations to urinary storage and release.
Documented control pattern
Record observed control and leakage patterns without inferring a neurological or outlet diagnosis from symptoms alone.
- What evidence describes coordination between the urinary reservoir and outlet during storage and release? measurement
- Which control findings require links to nervous-system or pelvic-support models? boundary
Emptying and assistance
Distinguishes spontaneous voiding, incomplete emptying, and assisted drainage.
Effective elimination state
Describe how urine leaves the system and what evidence establishes emptying, including assistance and residual volume.
- What voided volume, flow observations, and post-void residual measurements are available with their timing? measurement
- What assistance is currently used, and which existing care instructions govern its management? action
Urinary state and intervention context Makes urinary observations interpretable over time and identifies how interventions affect their meaning.
Collection conditions, altered drainage, and external support can make the same recorded output represent different underlying states.
Urinary observation validity
Retains specimen origin, collection interval, completeness, and relevant physiological context.
Interpretable output and specimens
Bind output and specimen results to their collection conditions before comparing them or drawing system-level conclusions.
- From which route was urine collected, over what interval, and with what evidence of complete collection? provenance
- What concurrent intake, fluid loss, medication, or drainage change affects interpretation of the observation? measurement
Supported function and review
Records intervention effects and connects unresolved changes to applicable review procedures.
Native versus supported urinary function
Identify which functions remain intrinsic and which are assisted, bypassed, or replaced, with uncertainty retained.
- Which functions are altered or supported by a catheter, stent, diversion, transplant, or renal replacement intervention? boundary
- Which documented change meets a review trigger in the applicable clinical or veterinary protocol, and who is authorised to respond? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- This description assumes human anatomy; urinary structures differ across animal groups.
- Numerical ranges are approximate adult physiological descriptions, not diagnostic thresholds.
- The boundary between urinary system and urinary tract depends on anatomical and clinical usage.
- Which of these check these first hold for the sense of urinary system this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- Terminologia Anatomica, maintained by the Federative International Programme for Anatomical Terminology (FIPAT), standardizes anatomical names for urinary organs and their structures.
- Which of these standards and regulation hold for the sense of urinary system this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Excretion of metabolic wastes and many drugs or their metabolites.
- Regulation of water balance, electrolyte concentrations and acid-base balance.
- Transport, storage and controlled elimination of urine.
- Kidney-mediated contributions to blood pressure regulation, red blood cell production and vitamin D activation.
- Which of these real-world use hold for the sense of urinary system this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Daily urine volume in a healthy adult - Approximately 0.8-2.0 with ordinary fluid intake; strongly dependent on intake and losses - L/day
- Functional urinary bladder capacity in adults - Approximately 300-500, with substantial individual variation - mL
- Which of these typical measurements hold for the sense of urinary system this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Urinary tract infections, which may involve the bladder or ascend to the kidneys.
- Urinary stones, which can cause pain, bleeding and obstruction.
- Urinary obstruction or retention, which can damage the kidneys when severe or prolonged.
- Acute kidney injury or chronic kidney disease, impairing waste removal and fluid regulation.
- Urinary incontinence caused by disturbances of storage, sphincter function or neurological control.
- Which of these failure modes and hazards hold for the sense of urinary system this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- system - A system is any organized set of interacting components; the urinary system is a specific anatomical system organized around urine production and elimination.
- kidney - A kidney is an individual organ within the urinary system; it does not include the ureters, bladder or urethra.
- urinary tract - Urinary tract emphasizes the organs and passages involved in urine flow; usage often overlaps with urinary system, so it is not consistently a separate anatomical entity.
- excretory system - Excretory system is a broader functional concept that may include non-urinary routes of waste elimination, such as the lungs and skin.
- reproductive system - The reproductive system produces gametes and supports reproduction; it has anatomical connections with the urinary system but a different primary function.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of urinary system this model covers, and on what evidence? provenance
What the second pass must settle
- Does the registry intend a human urinary-system model, a vertebrate-wide model, or a broader comparative scope requiring additional anatomical patterns?
- Does an existing Vercy world model already cover this concept, and which wider system model should supply inherited properties?
- How should the catalogue distinguish urinary system, renal system, urinary tract, and broader excretory system when source terminology overlaps?
- Which renal endocrine functions should be represented directly here versus linked to kidney and endocrine-system models?
- Which authoritative sources and species-specific protocols should establish measurement interpretation, life-stage variation, and review triggers?