Anatom3DPapillary muscle of left ventricle
Musculus papillaris ventriculi sinistri · Papilární sval levé komory
Muscles
Looks like
Finger-like muscles rising from the wall of the right ventricle, tied by thin tendon cords to the tricuspid valve flaps.
What it does
Tighten as the heart pumps, stopping the valve flaps from blowing back into the atrium.
Keeping it well
Damage lets the valve leak; a new heart murmur with breathlessness or swollen legs needs assessment.
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