{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.buttocks","code":"thing-q42165","url":"https://ver.cy/models/thing/q42165/","name":"buttocks","alternateNames":["human buttocks","male buttocks","big butt"],"kind":"thing","status":"published","version":"0.2.0-wave.3","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.LIV"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"The two rounded fleshy masses at the rear of the pelvis formed by the gluteal muscles and overlying fat, present in humans and many mammals, serving in humans for sitting, posture and powerful hip extension in walking, running and climbing; the buttocks are a site of injections, pressure sores and surgery, are subject to cultural attitudes about modesty and beauty, and are named by many colloquial terms.","purpose":"Let an agent explain the buttocks as an anatomical region, relay structure, function and clinical relevance in general terms, describe cultural attitudes with attribution, and distinguish anatomical from colloquial and sexualised uses.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Gluteal muscles","Prominent in humans","Weight-bearing in sitting","Cultural significance"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What the buttocks are.","layers":[{"id":"anatomy","name":"Anatomy","description":"Anatomy.","findings":[{"id":"anatomy-finding","name":"Anatomy","description":"Anatomy.","questions":[{"text":"What structures form the buttocks, and how do they relate to the pelvis and hip?","kind":"definition"},{"text":"Is the question anatomical, clinical or about colloquial usage?","kind":"boundary"}]}]},{"id":"function","name":"Function","description":"Function.","findings":[{"id":"function-finding","name":"Function","description":"Function.","questions":[{"text":"What functions do the buttocks serve in sitting, posture and movement, and why are they prominent in humans?","kind":"definition"},{"text":"Which entry fits gluteus maximus?","kind":"action"}]}]}]},{"id":"clinical","name":"Clinical","description":"Clinical relevance.","layers":[{"id":"care","name":"Care","description":"Injections and pressure sores.","findings":[{"id":"care-finding","name":"Care","description":"Care.","questions":[{"text":"Why are the buttocks used for injections, and how are pressure sores prevented, per guidelines?","kind":"provenance"},{"text":"Is the user asking about a personal condition, which needs a clinician?","kind":"boundary"}]}]},{"id":"surgery","name":"Surgery","description":"Surgery.","findings":[{"id":"surgery-finding","name":"Surgery","description":"Surgery.","questions":[{"text":"What reconstructive and cosmetic procedures involve the buttocks, and what risks are reported?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]}]},{"id":"culture","name":"Culture","description":"Culture.","layers":[{"id":"attitudes","name":"Attitudes","description":"Cultural attitudes.","findings":[{"id":"attitudes-finding","name":"Attitudes","description":"Attitudes.","questions":[{"text":"How do cultures treat the buttocks in modesty, beauty and humour, with attribution?","kind":"provenance"},{"text":"Is the presentation respectful and non-sexualised?","kind":"boundary"}]}]},{"id":"language","name":"Language","description":"Terminology.","findings":[{"id":"language-finding","name":"Language","description":"Language.","questions":[{"text":"What anatomical and colloquial terms exist, and how do registers differ?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"context","name":"Context","description":"Evolution and fitness.","layers":[{"id":"evolution","name":"Evolution","description":"Evolution.","findings":[{"id":"evolution-finding","name":"Evolution","description":"Evolution.","questions":[{"text":"Why did large gluteal muscles evolve in humans, as research on bipedalism and running describes?","kind":"provenance"},{"text":"Which entry fits human bipedalism?","kind":"action"}]}]},{"id":"fitness","name":"Fitness","description":"Training.","findings":[{"id":"fitness-finding","name":"Fitness","description":"Fitness.","questions":[{"text":"How are gluteal muscles trained and rehabilitated, in general terms?","kind":"provenance"},{"text":"Which entry fits strength training?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Explain the anatomy and function of the buttocks in medical and fitness contexts.","Advise on pressure relief for people who sit or lie for long periods, in general terms."],"mustNot":["Produce, collect or share sexualised images of a person without consent.","Generate sexualised content involving minors in any form.","Comment on a person's body shape in a demeaning way.","Recommend cosmetic procedures or injections to a person."],"requiresHuman":["Care tasks that involve touching or cleaning a person's body."]},"ethics":{"considerations":["The body is private; touching or imaging it needs consent.","Pressure sores on the buttocks cause serious harm to people in care."],"affectedParties":["People in care","People whose images are shared","Children"]},"owners":{"steward":"The person whose body it is.","roles":[],"masterSystems":[]},"relations":[{"target":"Q112826975","type":"parent","note":"registry parent class"},{"target":"Q41890459","type":"parent","note":"registry parent class"},{"target":"particular anatomical entity","type":"related","note":"in registry terms"},{"target":"set of subdivisions of cardinal body part","type":"related","note":"in registry terms"},{"target":"gluteus maximus","type":"related","note":"and other gluteal muscles"},{"target":"pelvis","type":"related","note":"and the ischial tuberosities"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.buttocks","Wikidata: Q42165 (https://www.wikidata.org/wiki/Q42165)","TA2: regio glutealis Terminologia Anatomica","MeSH: D002081 buttocks"]},"properties":{"applicability":"required","items":["Gluteal muscle volume:  cm3 - Volume is estimated from segmented magnetic resonance images and varies with anatomy and muscle development.","Subcutaneous fat thickness:  mm - Thickness is measured at a specified anatomical location using ultrasound or magnetic resonance imaging.","Seated interface pressure:  kPa - Pressure is measured with a pressure mapping surface and depends on posture, support and body mass."]},"recognition":{"applicability":"required","items":["Gluteal region of the body","Gluteal muscles, fat, sitting bones","The hip is the joint; the perineum lies between; colloquial terms vary in register","Two rounded prominences at the lower back of the trunk."]},"capabilities":{"applicability":"required","items":["explain structure and function","relay clinical relevance","describe cultural attitudes","distinguish anatomical from colloquial uses"]},"hazards":{"applicability":"required","items":["Pressure sores in immobile patients","Injection injuries to the sciatic nerve","Risks of cosmetic augmentation","Sexualised or disrespectful presentation"]},"interfaces":{"applicability":"required","items":["Clinical guidelines on injection sites and pressure ulcer prevention","Cosmetic surgery regulation","Decency laws vary by country"]},"context":{"applicability":"required","items":["Sitting, posture and hip extension.","gluteal muscles: maximus, medius and minimus","subcutaneous fat of the buttocks","buttocks in other mammals","clinical aspects such as injection sites and pressure sores","cosmetic and reconstructive surgery of the buttocks"]}},"sources":[{"title":"Wikidata item Q42165: buttocks","url":"https://www.wikidata.org/wiki/Q42165","note":"identity and sense of the item"},{"title":"Wikipedia: Buttocks","url":"https://en.wikipedia.org/wiki/Buttocks","note":"general description of the item"}],"openQuestions":["Should gluteal muscles be the primary linked entry?","How should clinical guidelines be linked?","The registry entry has merged aliases including colloquial terms; should they be split off?"],"resources":{"spec":"/models/things/publications/thing-q42165/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q42165/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T02:04:24Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:30+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}