First septal branch of posterior interventricular artery
Ramus septalis primus arteriae interventricularis posterioris · První septální větev zadní mezikomorové tepny
Heart & arteries
Looks like
The first branch diving from the posterior interventricular artery up into the septum.
What it does
Supplies the back third of the septum, often near the heart's electrical junction (AV node).
Keeping it well
Blocked in inferior heart attacks, sometimes causing heart block.
Related conditions
- 22q11.2 deletion syndrome (DiGeorge)
- Aortic stenosis
- 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 attack
- 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