paranasal sinus
Let an agent explain the paranasal sinuses and their anatomy, relay development, function and drainage from anatomical references, describe sinus disorders in general terms, and route symptoms to clinicians.
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.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain the paranasal sinuses and their anatomy, relay development, function and drainage from anatomical references, describe sinus disorders in general terms, and route symptoms to clinicians.
One of four paired air-filled cavities in the bones of the skull around the nasal cavity, the maxillary sinuses in the cheekbones, the frontal sinuses above the eyes, the ethmoid sinuses made up of anterior, middle and posterior ethmoidal cells between the eyes, and the sphenoidal sinuses behind the nasal cavity, lined with respiratory mucosa and draining into the nose, which lighten the skull, humidify air and affect voice resonance and are the site of sinusitis.
What it is for: Not applicable; anatomical structures.
It can be explain anatomy; relay development and function; describe disorders in general; route symptoms.
Distinguishing features
Paired cavities
Mucosal lining
Drainage into nose
Post-natal development
What it looks like
Not a visible object externally; air spaces seen on imaging.
Physical character
pairs: 4 count
maxillary sinus volume: about 15 ml - adult
frontal sinus development: after about age 6-7 note
How it is recognised
Air-filled cavities around the nose
Maxillary, frontal, ethmoid with anterior, middle and posterior cells, and sphenoidal sinuses
The nasal cavity is the main airway; the mastoid air cells are behind the ear
Related models
is a kind of - in registry terms
is a kind of - in registry terms
drains into - through ostia
is the site of - when inflamed
In practice
Families and kinds
maxillary sinuses
frontal sinuses
ethmoid sinuses with anterior, middle and posterior ethmoidal cells
sphenoidal sinuses
Identifiers
FMA 59679 paranasal sinus
MeSH D010256 paranasal sinuses
TA2 3169 sinus paranasales
Standards and regulation
Anatomical terminology standards
Clinical guidelines on rhinosinusitis
Failure modes and hazards
Agents giving personal medical advice
Confusing sinuses with the nasal cavity
Mistaking normal variants for disease on imaging
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: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What the sinuses are.
Science.
Anatomy
Anatomy.
Anatomy
Anatomy.
- What are the four paired paranasal sinuses, where are they, and how do they drain? definition
- Is the question about the sinuses, the nasal cavity or sinus disease? boundary
Development
Development and function.
Development
Development.
- How do the sinuses develop after birth, and what functions are proposed, with hypotheses attributed? definition
- Which entry fits the specific sinus? action
Health Disorders.
Clinical.
Sinusitis
Sinusitis.
Sinusitis
Sinusitis.
- What are acute and chronic rhinosinusitis, in general terms? provenance
- Is the user describing their own symptoms, which need a clinician? boundary
Other
Other conditions.
Other
Other.
- What other conditions affect the sinuses, from polyps to tumours and fractures, in general terms? provenance
- Which references are standard? provenance
Study Imaging and surgery.
Clinical.
Imaging
Imaging.
Imaging
Imaging.
- How are the sinuses imaged by CT and endoscopy? provenance
- Which sources are cited? provenance
Surgery
Surgery.
Surgery
Surgery.
- What is functional endoscopic sinus surgery, in general terms? provenance
- Which entry fits endoscopic sinus surgery? action
Context Comparison and history.
Context.
Animals
Other species.
Animals
Animals.
- How do paranasal sinuses vary across mammals? provenance
- Which entry fits comparative anatomy? action
History
History.
History
History.
- How were the sinuses described historically? provenance
- Which entry fits the history of anatomy? action
What the second pass must settle
- Should each sinus be a separate entry?
- How should anatomical references be linked?
- The registry entry has merged aliases naming individual sinuses and cells; should they be split off?