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The internal anal sphincter, IAS, or sphincter ani internus is a ring of smooth muscle that surrounds about 2.5–4.0 cm of the anal canal. It is about 5 mm thick, and is formed by an aggregation of the smooth (involuntary) circular muscle fibers of the rectum. [citation needed]
The analysis highlights Structure, Function and Physiology as prominent areas in the source structure around Internal anal sphincter.
Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.
Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
The extracted context around Internal anal sphincter shows recurring relationship patterns in the source. For example, Internal anal sphincter → At, It, Its, The Another extracted example is Internal anal sphincter → L1-L2, S2-S4, The. Use these groups to spot repeated connection types before inspecting the individual relationships.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
anal sphincter external rectum canal muscle ani contraction internal rectal continence ias stimulation smooth also involuntary sympathetic parasympathetic feces relaxation
TTTA extracted 14 structured relationships around Internal anal sphincter. Examples in this analysis include Internal anal sphincter → Actions → Keeps the anal canal and orifice closed, aids in the expulsion of the feces and Internal anal sphincter → FMA → 15710. The table shows each extracted connection, where it came from and its confidence.
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Internal anal sphincter | Actions | Keeps the anal canal and orifice closed, aids in the expulsion of the feces | 1.00 | infobox |
| Internal anal sphincter | FMA | 15710 | 1.00 | infobox |
| Internal anal sphincter | Latin | musculus sphincter ani internus | 1.00 | infobox |
| Internal anal sphincter | Nerve | Pelvic splanchnic nerves (S4), thoracicolumbar outflow of the spinal cord | 1.00 | infobox |
| Internal anal sphincter | TA2 | 3018 | 1.00 | infobox |
| Internal anal sphincter | TA98 | A05.7.05.011 | 1.00 | infobox |
| Internal anal sphincter | is a | specialised thickened terminal portion of the inner circular layer of smooth muscle of the large intestine | 0.90 | text |
| Internal anal sphincter | related to Innervation | The | 0.60 | section |
| Internal anal sphincter | related to Innervation | L1-L2 | 0.60 | section |
| Internal anal sphincter | related to Innervation | S2-S4 | 0.60 | section |
| Internal anal sphincter | related to Structure | The | 0.60 | section |
| Internal anal sphincter | related to Structure | It | 0.60 | section |
The concept neighborhoods around Internal anal sphincter bring nearby vocabulary together. In this analysis, examples include Smooth, Ani and Muscle. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
For Internal anal sphincter, one of the stronger structural bridges in this analysis connects Internal anal sphincter with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
TTTA analyzes the structure around Internal anal sphincter to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Structure, Function & Physiology, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
Source: Wikipedia — Internal anal sphincter · EN edition · Analysis: TopicsToTalkAbout