Viscera (heart, lungs, liver, gastrointestinal tract)
Posterior (inferior) papillary muscle of right ventricle
Musculus papillaris inferior (posterior) ventriculi dextri
- Origin
- Inferior (diaphragmatic) wall of the right ventricle
- Insertion
- Chordae tendineae attaching to the posterior and septal cusps of the tricuspid valve
- Function
- Anchors tricuspid cusps during right ventricular systole
- Innervation
- Cardiac plexus
- Movement & chain
- Systolic tensioning
- Palpation
- Echocardiography
- Clinical
- Contributes to tricuspid valve competence and right ventricular geometry.
- Segmental innervation
- T1-T4 spinal segments
- In clinical practice
- Echocardiographic Doppler evaluation in right heart failure
- Region in the model
- Viscera (heart, lungs, liver, gastrointestinal tract)