endothelium
Let an agent explain the endothelium and its functions, describe specialised forms and the naming of the corneal endothelium, relay its role in disease from clinical sources in general terms, and distinguish endothelium from epithelium and other linings.
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 endothelium and its functions, describe specialised forms and the naming of the corneal endothelium, relay its role in disease from clinical sources in general terms, and distinguish endothelium from epithelium and other linings.
A single layer of flattened cells lining the interior of blood and lymphatic vessels and the heart, the vascular endothelium, which regulates exchange between blood and tissues, vessel tone, clotting, inflammation and new vessel growth, with specialised forms such as capillary, lung and myoendothelium and the hemogenic endothelium that gives rise to blood stem cells in the embryo, and the unrelated corneal endothelium of the eye that shares the name; endothelial dysfunction underlies cardiovascular disease.
What it is for: Lining vessels and regulating exchange and vessel function.
It can be explain structure and functions; describe specialised forms; relay role in disease; distinguish from epithelium.
Distinguishing features
Simple squamous layer
Selective barrier
Nitric oxide signalling
Central to vascular disease
What it looks like
Not visible to the eye; a thin cell layer seen in microscopy.
Physical character
total endothelial surface: about 4000-7000 m2 - adult estimates
endothelial cells: about 1-6 trillion count - adult estimates
How it is recognised
Cell lining of blood and lymph vessels and heart
Vascular, capillary, lung, hemogenic and corneal endothelium
Epithelium lines external and internal surfaces; mesothelium lines body cavities
Related models
is a kind of - in registry terms
is a kind of - in registry terms
lines - and lymphatic vessels
produces - to regulate vessel tone
In practice
Families and kinds
vascular endothelium of arteries, veins and capillaries
lymphatic endothelium
endocardium of the heart
specialised endothelia such as lung and glomerular endothelium
hemogenic endothelium in development
corneal endothelium as a separately named tissue
Identifiers
TA2 endothelium Terminologia Anatomica
MeSH D004727 endothelium
Standards and regulation
Clinical guidelines on cardiovascular risk
No regulation of the tissue itself
Failure modes and hazards
Endothelial dysfunction and atherosclerosis
Confusing endothelium with epithelium
Agents giving personal medical advice
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 endothelium is.
Science.
Structure
Structure.
Structure
Structure.
- What is the endothelium, and how does it differ from epithelium and mesothelium? definition
- Is the question about vascular endothelium or the corneal endothelium? boundary
Functions
Functions.
Functions
Functions.
- How does the endothelium regulate exchange, tone, clotting, inflammation and angiogenesis? definition
- Which entry fits the specific function? action
Kinds Specialised endothelia.
Science.
Sites
Site-specific forms.
Sites
Sites.
- How do capillary, lung, glomerular and other endothelia differ? provenance
- Which entry fits the specific site? action
Development
Development.
Development
Development.
- What is hemogenic endothelium, and how does the endothelium develop? provenance
- Which references are standard? provenance
Disease Disease.
Clinical.
Dysfunction
Endothelial dysfunction.
Dysfunction
Dysfunction.
- How does endothelial dysfunction contribute to cardiovascular disease, in general terms? provenance
- Is the user asking about their own risk, which needs a clinician? boundary
Other
Other conditions.
Other
Other.
- What roles does the endothelium play in sepsis, diabetes and infection, as research describes? provenance
- Which sources are cited? provenance
Context Research and history.
Context.
Research
Research.
Research
Research.
- How are endothelial cells studied, and what therapies target them? provenance
- Which entry fits vascular biology? action
History
History.
History
History.
- How was the endothelium recognised as an active organ, including the discovery of nitric oxide signalling? provenance
- Which entry fits the history of physiology? action
What the second pass must settle
- Should corneal endothelium be a separate entry?
- How should physiology references be linked?
- The registry entry has merged aliases naming site-specific endothelia; should they be split off?