Anatom3DPosterior papillary muscle of right ventricle
Musculus papillaris posterior ventriculi dextri · Zadní papilární sval pravé komory
Muscles
Looks like
A papillary muscle on the lower wall of the right ventricle, often split into two or three parts.
What it does
Tethers the back and septal flaps of the tricuspid valve to prevent backflow.
Keeping it well
Can be affected by a heart attack in the lower wall; new breathlessness after one needs review.
Related conditions
- 22q11.2 deletion syndrome (DiGeorge)
- Aortic stenosis
- Atrial flutter
- Botulism
- Cardiomyopathy (dilated, restrictive, arrhythmogenic)
- Chagas disease
- Congenital heart defects
- Coronary artery disease
- Diphtheria
- Down syndrome (trisomy 21)
- Eating disorders
- Extra heartbeats (ectopics and palpitations)
- Fainting (syncope)
- Fibromyalgia
- Frailty & falls in older age
- Friedreich's ataxia
- Heart failure
- Heat exhaustion & heatstroke
- Hypertrophic cardiomyopathy
- Hypothermia & frostbite
- Kawasaki disease
- Long QT syndrome
- Malnutrition & refeeding syndrome
- Muscular dystrophy
- Myocarditis
- Orthostatic hypotension & POTS
- Panic disorder
- Pericardial effusion & tamponade
- Pericarditis
- Polymyalgia rheumatica
- Rhabdomyolysis
- Sarcoma
- Sarcopenia
- Shock (circulatory failure)
- Sudden cardiac arrest
- Sudden infant death syndrome
- Supraventricular tachycardia
- Takotsubo (stress) cardiomyopathy
- Tetanus
- Tuberous sclerosis complex
- Wolff–Parkinson–White syndrome