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List navigation
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| Home page | TAH partonomy |
| Top level |
cardiovascular system  Short Extended
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| Level 2 |
heart Short Extended
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| Current level |
conducting system of heart
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| Subsidiary language with Latin |
  
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| Non Latin primary language |
  
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Partonomy list
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| FMA | TA | UID | ISA |
Short English equivalent
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Short official Latin term
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| 9476 |
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3706 | tax |
conducting system of heart
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systema conducens cordis
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| 9477 |
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3707 | tax |
sinuatrial node
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nodus sinuatrialis
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15757 | tax |
head of sinuatrial node
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caput nodi sinuatrialis
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15758 | tax |
tail of sinuatrial node
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cauda nodi sinuatrialis
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| 9479 |
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15759↓ | tax |
internodal tracts
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tractus internodales
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| 9480 |
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15760 | tax |
anterior internodal tract
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tractus internodalis anterior
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| 84578 |
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15761↓ | tax |
interatrial bundle
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fasciculus interatrialis
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| 9482 |
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15762↓ | tax |
middle internodal tract
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tractus internodalis medius
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| 9483 |
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15763↓ | tax |
posterior internodal tract
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tractus internodalis posterior
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| 9478 |
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3708 | tax |
atrioventricular node
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nodus atrioventricularis
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| 9484 |
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3709 | tax |
atrioventricular bundle
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fasciculus atrioventricularis
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| 9486 |
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3710 | tax |
right bundle branch; right branch of atrioventricular bundle
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crus dextrum fasciculi atrioventricularis
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| 9487 |
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3711 | tax |
left bundle branch; left branch of atrioventricular bundle
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crus sinistrum fasciculi atrioventricularis
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| 9488 |
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14790 | tax |
left anterior branch of atrioventricular bundle; superior fascicle of left bundle branch
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ramus anterior cruris sinistri fasciculi atrioventricularis
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| 83331 |
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14791 | tax |
left intermediate branch of atrioventricular bundle; septal fascicle of left bundle branch
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ramus intermedius cruris sinistri fasciculi atrioventricularis
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| 9489 |
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14866 | tax |
left posterior branch of atrioventricular bundle; inferior fascicle of left bundle branch
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ramus posterior cruris sinistri fasciculi atrioventricularis
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3712 | tax |
subendocardial branches
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rami subendocardiaci
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17 lines
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47.1 %
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88.2 %
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Scientific notes
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| UID |
Libelle of note
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| 15759 |
Internodal tracts are bands of specialized myocytes, which are believed to extend between the sinuatrial and atrioventricular nodes (James 1963 Am Heart J 66:498-508; James 2001 Prog Cardiovasc Dis 43:495-535; Seo et al. 2022 J Chest Surg 55:364-377).
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| 15761 |
The interatrial or interauricular bundle of Bachmann derives from the anterior internodal tract (Bachmann 1916 Am J Physiol 41:309-320).
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| 15762 |
The middle internodal tract was decribed by Wenckebach (1907 Arch Anat Physiol 1:1-2).
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| 15763 |
The posterior internodal tract was described by Thorel (1910 Münch med Wochenschr 57:183-186).
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Signature
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| Type of list | P3 |
| List Unit Identifier | 3706 |
| Subtotals | subchildren 0 subunits 0 |
| Proper children | 16 |
| Number of children | 16 (validated) |
| Proper units | 17 |
| Number of units | 17 (validated) |
| Signature | 22707 (validated since 10.1.2025) |
| Date: 12.06.2025 |