Anatom3DOutflow part of right atrium
Pars efferens atrii dextri · Výtoková část pravé síně
Heart & arteries
Looks like
The smooth part of an atrium leading into its valve opening — the vestibule just above the tricuspid or mitral valve.
What it does
Channels blood from the atrium through the valve into the ventricle.
Keeping it well
Stretches when the valve leaks or the atrium enlarges; rarely a problem of its own.
Related conditions
- 22q11.2 deletion syndrome (DiGeorge)
- Aortic stenosis
- Atrial fibrillation
- Atrial flutter
- 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)
- Friedreich's ataxia
- Heart failure
- High blood pressure
- High cholesterol
- Hypertrophic cardiomyopathy
- Hypothermia & frostbite
- Kawasaki disease
- Long QT syndrome
- Metabolic syndrome
- Myocarditis
- Orthostatic hypotension & POTS
- Panic disorder
- Pericardial effusion & tamponade
- Pericarditis
- Peripheral artery disease
- Phaeochromocytoma & hyperaldosteronism
- Pre-eclampsia
- Raynaud's phenomenon
- Sepsis
- Shock (circulatory failure)
- Sudden cardiac arrest
- Sudden infant death syndrome
- Supraventricular tachycardia
- Takotsubo (stress) cardiomyopathy
- Tuberous sclerosis complex
- Vasculitis (GCA & others)
- Wolff–Parkinson–White syndrome