Viscera (heart, lungs, liver, gastrointestinal tract)
Septal papillary muscle of right ventricle
Musculus papillaris septalis ventriculi dextri
- Origin
- Interventricular septum of the right ventricle
- Insertion
- Chordae tendineae attaching to the anterior and septal cusps of the tricuspid valve
- Function
- Anchors the septal cusp of the tricuspid valve; smallest and most anatomically variable papillary muscle
- Innervation
- Cardiac plexus
- Movement & chain
- Systolic tensioning
- Palpation
- Echocardiography
- Clinical
- Key anatomical landmark during congenital VSD repair to avoid damaging the adjacent atrioventricular conduction bundle.
- Segmental innervation
- T1-T4 spinal segments
- In clinical practice
- Post-surgical cardiac rhythm monitoring for conduction block after septal interventions
- Region in the model
- Viscera (heart, lungs, liver, gastrointestinal tract)