neck
Enable an agent to recognise an anatomical neck, record its structure and functional state, and determine which observations or actions require species-specific knowledge or qualified assessment.
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 an anatomical neck, record its structure and functional state, and determine which observations or actions require species-specific knowledge or qualified assessment.
The neck is the anatomical region connecting the head to the trunk in humans and other animals with a distinct cervical region, supporting head movement and containing structures that pass between the head and body.
It can be Locate and annotate the neck using a species-appropriate anatomical convention.; Record dimensions and posture with reproducible landmarks and methods.; Describe observed head-to-trunk movement without imposing unverified normal ranges.; Link regional observations to the relevant anatomical structures and neighbouring system models.; Compare regional condition over time while preserving differences in observation method.; Identify when proposed contact, handling or examination lacks the information or qualified assessment needed to proceed..
Distinguishing features
The referent is a region of a living or formerly living animal body, rather than a narrowed part of an artefact.
Its location is established between the head and trunk using landmarks appropriate to the organism.
The term identifies a regional assembly of tissues and structures, rather than only the cervical spine or a single passageway.
The throat denotes a more restricted region or set of structures; it does not automatically identify the entire neck.
An externally indistinct head-to-trunk transition requires an explicit anatomical convention before being labelled a neck.
Scope
+ Identification of the individual organism, species and anatomical neck region
+ External landmarks and boundaries with the head, shoulder region and trunk
+ Regional arrangement of supporting, muscular and soft-tissue structures
+ Head support and movement relative to the trunk
+ Continuity of airway, digestive, vascular and neural structures through the region
+ Observed regional condition and constraints on examination, handling or contact
- The organism's complete anatomy, taxonomy or conservation status
- The head, shoulder girdle and thorax except at their interfaces with the neck
- Complete models of the spine, airway, digestive tract or circulatory and nervous systems
- Disease diagnosis, treatment protocols and procedural instruction
- Necks of bottles, instruments, garments or other non-anatomical objects
- A taxon or species treated as though it were an individual body region
Characteristics
- Organism and anatomical applicability
- Individual organism identifier, species identification and applicable anatomical reference Determines whether a neck is recognised and which structural conventions can be used.
- Regional boundaries
- Named superior, inferior and circumferential landmarks under a stated convention Prevents observations of the head, shoulders or trunk from being assigned to the neck without justification.
- Neck length
- mm or cm between specified landmarks, with posture and method recorded Supports repeatable comparison without treating different landmark definitions as equivalent.
- Neck circumference
- mm or cm at a stated level, with posture and measurement conditions recorded Supports regional size tracking and assessment of the fit of items worn around the neck.
- Head-to-trunk posture
- Observed orientation, support condition and reference posture Distinguishes resting configuration from posture imposed by support, movement or equipment.
- Movement extent
- Degrees by specified movement and reference frame; active or passive method identified Makes movement observations interpretable without assuming universal limits.
- Regional structural membership
- Identified structures linked as contained within, traversing or bordering the neck Separates ownership of the body region from ownership of complete organs and systems.
- Observed regional condition
- Reported or observed pain, swelling, skin change, asymmetry or movement difficulty; absent, present or unknown Records findings without converting observations into unsupported diagnoses.
- External contact
- Contacting item or support, location, fit, duration and known restrictions Connects neck condition and movement to collars, clothing, supports or other external contact.
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.neck-object
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 17 findings · 31 questions.
Anatomical identity and boundaries Establishes which anatomical neck is being described and where the region begins and ends.
Neck boundaries and even the applicability of the term depend on the organism and anatomical convention.
Organism and sense
Anchors the term to an individual animal and an anatomical interpretation.
Neck applicability
Record the evidence that this organism has a region appropriately described as a neck.
- Which individual and species does this neck belong to? provenance
- Which anatomical reference supports calling this head-to-trunk region a neck? definition
Regional delimitation
Defines interfaces with the head, trunk and shoulder region.
Neck landmarks
Specify the landmarks and convention used to assign structures and observations to the neck.
- Which landmarks define the upper and lower limits of this neck? boundary
- How are observations near the jaw, shoulders or trunk assigned to one region rather than another? boundary
Regional structure and form Describes the neck's supporting anatomy, tissue arrangement and external dimensions.
The neck is a composite region whose visible shape cannot identify every underlying structure.
Supporting anatomy
Records identified supporting structures and their regional relationships.
Structural composition
Link verified skeletal, muscular and other supporting structures without assuming a human arrangement.
- Which structures are identified as supporting the head within this neck? definition
- Which identifications come from direct observation, imaging or a species reference? provenance
External form
Records neck dimensions, contour and visible asymmetry under specified conditions.
Reproducible neck dimensions
Treat dimensions as measurements tied to landmarks, posture and method.
- Between which landmarks and in which posture was neck length measured? measurement
- At which level and under which contact conditions was circumference measured? measurement
- Which contour differences are visible, and which remain uncertain because of covering or positioning? measurement
Head support and movement Captures how the neck positions and moves the head relative to the trunk.
Movement and support distinguish functional neck assessment from a static description of shape.
Posture and support
Describes head orientation and the circumstances maintaining it.
Head-to-trunk configuration
Record posture together with external support and observation context.
- What is the head's orientation relative to the trunk in the recorded posture? measurement
- Is the posture maintained independently or influenced by a surface, support or contacting item? boundary
Movement observation
Records movement direction, extent and conditions without assuming a universal normal range.
Neck movement profile
Distinguish neck movement from trunk compensation and preserve the method of observation.
- Which movements were observed, through what extent, and were they spontaneous, active on request or passively assessed? measurement
- How was movement of the trunk distinguished from movement occurring through the neck? boundary
- What reported discomfort or observed difficulty limited the observation? action
Passageways and system interfaces Maps structures that pass through the neck and connect it to wider body systems.
Regional observations may concern breathing, swallowing, circulation or neural function, while the complete systems belong to neighbouring models.
Airway and digestive interfaces
Locates identified airway and digestive segments relative to the neck.
Regional passageway mapping
Record which passageway segments traverse the region and separate location from demonstrated function.
- Which airway and digestive structures are verified within the neck of this species? provenance
- Where do those regional segments connect to structures owned by head or trunk models? boundary
- What observations support any recorded breathing or swallowing difficulty, and what remains unassessed? measurement
Vascular and neural interfaces
Links identified vessels and neural structures to their wider systems.
Regional system continuity
Represent anatomical continuity without inferring vessel or nerve condition from external appearance.
- Which vessels and neural structures have been identified within or across the neck boundaries? provenance
- Which claims concern regional anatomy, and which require assessment in a vascular or nervous-system model? boundary
Condition and interaction Records regional changes and the context needed to judge proposed examination or external contact.
Neck observations must retain uncertainty, and actions depend on condition, contact location and assessment context.
Regional condition
Captures visible, reported or professionally assessed changes without conflating them.
Neck condition record
Locate and timestamp observations such as swelling, skin change, discomfort or asymmetry.
- Where on the neck is the change located, when was it first recorded, and how has it changed? measurement
- Was the finding self-reported, externally observed or established by a qualified assessment? provenance
Contact and action constraints
Describes items touching the neck and the basis for deciding whether an interaction is appropriate.
Neck interaction context
Record the location and purpose of contact together with relevant restrictions and missing information.
- What item or support contacts the neck, at which location, and with what observed effect on movement or comfort? measurement
- Which established restrictions apply to the proposed examination, handling or equipment adjustment? action
- What missing information requires qualified assessment before the proposed interaction can be judged appropriate? 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.
- The intended sense is inferred to be an animal body region, with human anatomy used for specific terminology and hazards.
- Neck structure and cervical vertebral counts vary across animal groups; the human count should not be generalized to all animals.
- No universal neck circumference or movement range is supplied because values depend on population and measurement protocol.
- Which of these check these first hold for the sense of neck this model covers, and on what evidence? provenance
Identifiers and schemes
Recalled without web access and unsourced; every item is a lead to verify.
- Terminologia Anatomica - Collum - Latin anatomical term for the human neck; cervix also occurs in anatomical usage but is ambiguous without context.
- Which of these identifiers and schemes hold for the sense of neck 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, standardizes human anatomical names.
- Which of these standards and regulation hold for the sense of neck this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Anatomical landmarks guide examination, imaging and surgical access.
- Neck dimensions inform clothing, protective equipment and ergonomic design.
- Head and neck movement supports vision, feeding and environmental orientation.
- Which of these real-world use hold for the sense of neck this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Number of cervical vertebrae in typical human anatomy - 7 - vertebrae
- Which of these typical measurements hold for the sense of neck 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.
- Cervical fractures or dislocations can injure the spinal cord.
- External compression or internal swelling can obstruct the airway.
- Injury to major cervical blood vessels can cause severe bleeding or impair cerebral circulation.
- Acceleration and deceleration can injure cervical muscles, ligaments and other tissues.
- Degenerative changes can compress cervical nerve roots or the spinal cord.
- Which of these failure modes and hazards hold for the sense of neck 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.
- cervical spine - The cervical spine is the vertebral component of the neck; the neck also includes muscles, vessels, nerves, airway and other tissues.
- throat - Throat usually refers to the internal pharyngeal region and adjacent passages, rather than the entire neck.
- nape - The nape is the posterior part of the neck.
- head - The head contains the cranium and face; the neck connects it to the trunk.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of neck this model covers, and on what evidence? provenance
What the second pass must settle
- Does the registry intend a human neck specifically, or a comparative anatomical region across animal groups?
- Which anatomical authorities and boundary conventions should govern each supported species?
- Does an existing Vercy world model already own this anatomical concept, requiring a registry link instead of a separate publication?
- Which measurement methods and reference populations support meaningful comparisons of neck dimensions and movement?
- Which species-specific assessment standards should govern action constraints when neck injury or impaired function is suspected?